20175761529

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{6917}}^1$

素因数の和:7028

約数の個数: 128

約数和(自身を含む): 39528898560

約数和(自身を除く): 19353137031

約数列:

[1, 3, 7, 9, 11, 21, 23, 27, 33, 61, 63, 69, 77, 99, 161, 183, 189, 207, 231, 253, 297, 427, 483, 549, 621, 671, 693, 759, 1281, 1403, 1449, 1647, 1771, 2013, 2079, 2277, 3843, 4209, 4347, 4697, 5313, 6039, 6831, 6917, 9821, 11529, 12627, 14091, 15433, 15939, 18117, 20751, 29463, 37881, 42273, 46299, 47817, 48419, 62253, 76087, 88389, 108031, 126819, 138897, 145257, 159091, 186759, 228261, 265167, 324093, 416691, 421937, 435771, 477273, 532609, 684783, 972279, 1113637, 1265811, 1307313, 1431819, 1597827, 1750001, 2054349, 2916837, 2953559, 3340911, 3797433, 4295457, 4641307, 4793481, 5250003, 8860677, 9704551, 10022733, 11392299, 12250007, 13923921, 14380443, 15750009, 26582031, 29113653, 30068199, 32489149, 36750021, 41771763, 47250027, 67931857, 79746093, 87340959, 97467447, 106750061, 110250063, 125315289, 203795571, 262022877, 292402341, 320250183, 330750189, 611386713, 747250427, 877207023, 960750549, 1834160139, 2241751281, 2882251647, 6725253843, 20175761529]

約数ペア:

[(1, 20175761529), (3, 6725253843), (7, 2882251647), (9, 2241751281), (11, 1834160139), (21, 960750549), (23, 877207023), (27, 747250427), (33, 611386713), (61, 330750189), (63, 320250183), (69, 292402341), (77, 262022877), (99, 203795571), (161, 125315289), (183, 110250063), (189, 106750061), (207, 97467447), (231, 87340959), (253, 79746093), (297, 67931857), (427, 47250027), (483, 41771763), (549, 36750021), (621, 32489149), (671, 30068199), (693, 29113653), (759, 26582031), (1281, 15750009), (1403, 14380443), (1449, 13923921), (1647, 12250007), (1771, 11392299), (2013, 10022733), (2079, 9704551), (2277, 8860677), (3843, 5250003), (4209, 4793481), (4347, 4641307), (4697, 4295457), (5313, 3797433), (6039, 3340911), (6831, 2953559), (6917, 2916837), (9821, 2054349), (11529, 1750001), (12627, 1597827), (14091, 1431819), (15433, 1307313), (15939, 1265811), (18117, 1113637), (20751, 972279), (29463, 684783), (37881, 532609), (42273, 477273), (46299, 435771), (47817, 421937), (48419, 416691), (62253, 324093), (76087, 265167), (88389, 228261), (108031, 186759), (126819, 159091), (138897, 145257)]