21333530

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{853}}^1$

素因数の和:962

約数の個数: 32

約数和(自身を含む): 40028688

約数和(自身を除く): 18695158

約数列:

[1, 2, 5, 10, 41, 61, 82, 122, 205, 305, 410, 610, 853, 1706, 2501, 4265, 5002, 8530, 12505, 25010, 34973, 52033, 69946, 104066, 174865, 260165, 349730, 520330, 2133353, 4266706, 10666765, 21333530]

約数ペア:

[(1, 21333530), (2, 10666765), (5, 4266706), (10, 2133353), (41, 520330), (61, 349730), (82, 260165), (122, 174865), (205, 104066), (305, 69946), (410, 52033), (610, 34973), (853, 25010), (1706, 12505), (2501, 8530), (4265, 5002)]