21165375

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{733}}^1$

素因数の和:769

約数の個数: 64

約数和(自身を含む): 43969536

約数和(自身を除く): 22804161

約数列:

[1, 3, 5, 7, 11, 15, 21, 25, 33, 35, 55, 75, 77, 105, 125, 165, 175, 231, 275, 375, 385, 525, 733, 825, 875, 1155, 1375, 1925, 2199, 2625, 3665, 4125, 5131, 5775, 8063, 9625, 10995, 15393, 18325, 24189, 25655, 28875, 40315, 54975, 56441, 76965, 91625, 120945, 128275, 169323, 201575, 274875, 282205, 384825, 604725, 641375, 846615, 1007875, 1411025, 1924125, 3023625, 4233075, 7055125, 21165375]

約数ペア:

[(1, 21165375), (3, 7055125), (5, 4233075), (7, 3023625), (11, 1924125), (15, 1411025), (21, 1007875), (25, 846615), (33, 641375), (35, 604725), (55, 384825), (75, 282205), (77, 274875), (105, 201575), (125, 169323), (165, 128275), (175, 120945), (231, 91625), (275, 76965), (375, 56441), (385, 54975), (525, 40315), (733, 28875), (825, 25655), (875, 24189), (1155, 18325), (1375, 15393), (1925, 10995), (2199, 9625), (2625, 8063), (3665, 5775), (4125, 5131)]