18408225

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:498

約数の個数: 48

約数和(自身を含む): 33908544

約数和(自身を除く): 15500319

約数列:

[1, 3, 5, 11, 15, 25, 33, 53, 55, 75, 159, 165, 265, 275, 421, 583, 795, 825, 1263, 1325, 1749, 2105, 2915, 3975, 4631, 6315, 8745, 10525, 13893, 14575, 22313, 23155, 31575, 43725, 66939, 69465, 111565, 115775, 245443, 334695, 347325, 557825, 736329, 1227215, 1673475, 3681645, 6136075, 18408225]

約数ペア:

[(1, 18408225), (3, 6136075), (5, 3681645), (11, 1673475), (15, 1227215), (25, 736329), (33, 557825), (53, 347325), (55, 334695), (75, 245443), (159, 115775), (165, 111565), (265, 69465), (275, 66939), (421, 43725), (583, 31575), (795, 23155), (825, 22313), (1263, 14575), (1325, 13893), (1749, 10525), (2105, 8745), (2915, 6315), (3975, 4631)]