21340956

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19543}}^1$

素因数の和:19570

約数の個数: 48

約数和(自身を含む): 61289984

約数和(自身を除く): 39949028

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 156, 182, 273, 364, 546, 1092, 19543, 39086, 58629, 78172, 117258, 136801, 234516, 254059, 273602, 410403, 508118, 547204, 762177, 820806, 1016236, 1524354, 1641612, 1778413, 3048708, 3556826, 5335239, 7113652, 10670478, 21340956]

約数ペア:

[(1, 21340956), (2, 10670478), (3, 7113652), (4, 5335239), (6, 3556826), (7, 3048708), (12, 1778413), (13, 1641612), (14, 1524354), (21, 1016236), (26, 820806), (28, 762177), (39, 547204), (42, 508118), (52, 410403), (78, 273602), (84, 254059), (91, 234516), (156, 136801), (182, 117258), (273, 78172), (364, 58629), (546, 39086), (1092, 19543)]