21554830

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{233}}^1$

素因数の和:309

約数の個数: 48

約数和(自身を含む): 44023824

約数和(自身を除く): 22468994

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 110, 145, 233, 290, 319, 466, 638, 841, 1165, 1595, 1682, 2330, 2563, 3190, 4205, 5126, 6757, 8410, 9251, 12815, 13514, 18502, 25630, 33785, 46255, 67570, 74327, 92510, 148654, 195953, 371635, 391906, 743270, 979765, 1959530, 2155483, 4310966, 10777415, 21554830]

約数ペア:

[(1, 21554830), (2, 10777415), (5, 4310966), (10, 2155483), (11, 1959530), (22, 979765), (29, 743270), (55, 391906), (58, 371635), (110, 195953), (145, 148654), (233, 92510), (290, 74327), (319, 67570), (466, 46255), (638, 33785), (841, 25630), (1165, 18502), (1595, 13514), (1682, 12815), (2330, 9251), (2563, 8410), (3190, 6757), (4205, 5126)]