21437230

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{311}}^1$

素因数の和:492

約数の個数: 32

約数和(自身を含む): 39693888

約数和(自身を除く): 18256658

約数列:

[1, 2, 5, 10, 61, 113, 122, 226, 305, 311, 565, 610, 622, 1130, 1555, 3110, 6893, 13786, 18971, 34465, 35143, 37942, 68930, 70286, 94855, 175715, 189710, 351430, 2143723, 4287446, 10718615, 21437230]

約数ペア:

[(1, 21437230), (2, 10718615), (5, 4287446), (10, 2143723), (61, 351430), (113, 189710), (122, 175715), (226, 94855), (305, 70286), (311, 68930), (565, 37942), (610, 35143), (622, 34465), (1130, 18971), (1555, 13786), (3110, 6893)]