21581190

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3931}}^1$

素因数の和:4005

約数の個数: 48

約数和(自身を含む): 57045456

約数和(自身を除く): 35464266

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 61, 90, 122, 183, 305, 366, 549, 610, 915, 1098, 1830, 2745, 3931, 5490, 7862, 11793, 19655, 23586, 35379, 39310, 58965, 70758, 117930, 176895, 239791, 353790, 479582, 719373, 1198955, 1438746, 2158119, 2397910, 3596865, 4316238, 7193730, 10790595, 21581190]

約数ペア:

[(1, 21581190), (2, 10790595), (3, 7193730), (5, 4316238), (6, 3596865), (9, 2397910), (10, 2158119), (15, 1438746), (18, 1198955), (30, 719373), (45, 479582), (61, 353790), (90, 239791), (122, 176895), (183, 117930), (305, 70758), (366, 58965), (549, 39310), (610, 35379), (915, 23586), (1098, 19655), (1830, 11793), (2745, 7862), (3931, 5490)]