21241430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{15971}}^1$

素因数の和:16004

約数の個数: 32

約数和(自身を含む): 45999360

約数和(自身を除く): 24757930

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 15971, 31942, 79855, 111797, 159710, 223594, 303449, 558985, 606898, 1117970, 1517245, 2124143, 3034490, 4248286, 10620715, 21241430]

約数ペア:

[(1, 21241430), (2, 10620715), (5, 4248286), (7, 3034490), (10, 2124143), (14, 1517245), (19, 1117970), (35, 606898), (38, 558985), (70, 303449), (95, 223594), (133, 159710), (190, 111797), (266, 79855), (665, 31942), (1330, 15971)]