21594980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{953}}^1$

素因数の和:1076

約数の個数: 48

約数和(自身を含む): 50004864

約数和(自身を除く): 28409884

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 103, 110, 206, 220, 412, 515, 953, 1030, 1133, 1906, 2060, 2266, 3812, 4532, 4765, 5665, 9530, 10483, 11330, 19060, 20966, 22660, 41932, 52415, 98159, 104830, 196318, 209660, 392636, 490795, 981590, 1079749, 1963180, 2159498, 4318996, 5398745, 10797490, 21594980]

約数ペア:

[(1, 21594980), (2, 10797490), (4, 5398745), (5, 4318996), (10, 2159498), (11, 1963180), (20, 1079749), (22, 981590), (44, 490795), (55, 392636), (103, 209660), (110, 196318), (206, 104830), (220, 98159), (412, 52415), (515, 41932), (953, 22660), (1030, 20966), (1133, 19060), (1906, 11330), (2060, 10483), (2266, 9530), (3812, 5665), (4532, 4765)]