51279921

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{31}}^2$

素因数の和:104

約数の個数: 81

約数和(自身を含む): 97863129

約数和(自身を除く): 46583208

約数列:

[1, 3, 7, 9, 11, 21, 31, 33, 49, 63, 77, 93, 99, 121, 147, 217, 231, 279, 341, 363, 441, 539, 651, 693, 847, 961, 1023, 1089, 1519, 1617, 1953, 2387, 2541, 2883, 3069, 3751, 4557, 4851, 5929, 6727, 7161, 7623, 8649, 10571, 11253, 13671, 16709, 17787, 20181, 21483, 26257, 31713, 33759, 47089, 50127, 53361, 60543, 73997, 78771, 95139, 116281, 141267, 150381, 183799, 221991, 236313, 348843, 423801, 517979, 551397, 665973, 813967, 1046529, 1553937, 1654191, 2441901, 4661811, 5697769, 7325703, 17093307, 51279921]

約数ペア:

[(1, 51279921), (3, 17093307), (7, 7325703), (9, 5697769), (11, 4661811), (21, 2441901), (31, 1654191), (33, 1553937), (49, 1046529), (63, 813967), (77, 665973), (93, 551397), (99, 517979), (121, 423801), (147, 348843), (217, 236313), (231, 221991), (279, 183799), (341, 150381), (363, 141267), (441, 116281), (539, 95139), (651, 78771), (693, 73997), (847, 60543), (961, 53361), (1023, 50127), (1089, 47089), (1519, 33759), (1617, 31713), (1953, 26257), (2387, 21483), (2541, 20181), (2883, 17787), (3069, 16709), (3751, 13671), (4557, 11253), (4851, 10571), (5929, 8649), (6727, 7623)]