19929825

素因数分解:

$3^2\times 5^2\times {\mathrm{101}}^1\times {\mathrm{877}}^1$

素因数の和:994

約数の個数: 36

約数和(自身を含む): 36091068

約数和(自身を除く): 16161243

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 101, 225, 303, 505, 877, 909, 1515, 2525, 2631, 4385, 4545, 7575, 7893, 13155, 21925, 22725, 39465, 65775, 88577, 197325, 265731, 442885, 797193, 1328655, 2214425, 3985965, 6643275, 19929825]

約数ペア:

[(1, 19929825), (3, 6643275), (5, 3985965), (9, 2214425), (15, 1328655), (25, 797193), (45, 442885), (75, 265731), (101, 197325), (225, 88577), (303, 65775), (505, 39465), (877, 22725), (909, 21925), (1515, 13155), (2525, 7893), (2631, 7575), (4385, 4545)]