21244236

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3167}}^1$

素因数の和:3230

約数の個数: 48

約数和(自身を含む): 54641664

約数和(自身を除く): 33397428

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 43, 52, 78, 86, 129, 156, 172, 258, 516, 559, 1118, 1677, 2236, 3167, 3354, 6334, 6708, 9501, 12668, 19002, 38004, 41171, 82342, 123513, 136181, 164684, 247026, 272362, 408543, 494052, 544724, 817086, 1634172, 1770353, 3540706, 5311059, 7081412, 10622118, 21244236]

約数ペア:

[(1, 21244236), (2, 10622118), (3, 7081412), (4, 5311059), (6, 3540706), (12, 1770353), (13, 1634172), (26, 817086), (39, 544724), (43, 494052), (52, 408543), (78, 272362), (86, 247026), (129, 164684), (156, 136181), (172, 123513), (258, 82342), (516, 41171), (559, 38004), (1118, 19002), (1677, 12668), (2236, 9501), (3167, 6708), (3354, 6334)]