21763665

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{571}}^1$

素因数の和:611

約数の個数: 72

約数和(自身を含む): 47471424

約数和(自身を除く): 25707759

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 121, 165, 231, 315, 363, 385, 495, 571, 605, 693, 847, 1089, 1155, 1713, 1815, 2541, 2855, 3465, 3997, 4235, 5139, 5445, 6281, 7623, 8565, 11991, 12705, 18843, 19985, 25695, 31405, 35973, 38115, 43967, 56529, 59955, 69091, 94215, 131901, 179865, 207273, 219835, 282645, 345455, 395703, 483637, 621819, 659505, 1036365, 1450911, 1978515, 2418185, 3109095, 4352733, 7254555, 21763665]

約数ペア:

[(1, 21763665), (3, 7254555), (5, 4352733), (7, 3109095), (9, 2418185), (11, 1978515), (15, 1450911), (21, 1036365), (33, 659505), (35, 621819), (45, 483637), (55, 395703), (63, 345455), (77, 282645), (99, 219835), (105, 207273), (121, 179865), (165, 131901), (231, 94215), (315, 69091), (363, 59955), (385, 56529), (495, 43967), (571, 38115), (605, 35973), (693, 31405), (847, 25695), (1089, 19985), (1155, 18843), (1713, 12705), (1815, 11991), (2541, 8565), (2855, 7623), (3465, 6281), (3997, 5445), (4235, 5139)]