21751212

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{8353}}^1$

素因数の和:8398

約数の個数: 48

約数和(自身を含む): 59881472

約数和(自身を除く): 38130260

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 31, 42, 62, 84, 93, 124, 186, 217, 372, 434, 651, 868, 1302, 2604, 8353, 16706, 25059, 33412, 50118, 58471, 100236, 116942, 175413, 233884, 258943, 350826, 517886, 701652, 776829, 1035772, 1553658, 1812601, 3107316, 3625202, 5437803, 7250404, 10875606, 21751212]

約数ペア:

[(1, 21751212), (2, 10875606), (3, 7250404), (4, 5437803), (6, 3625202), (7, 3107316), (12, 1812601), (14, 1553658), (21, 1035772), (28, 776829), (31, 701652), (42, 517886), (62, 350826), (84, 258943), (93, 233884), (124, 175413), (186, 116942), (217, 100236), (372, 58471), (434, 50118), (651, 33412), (868, 25059), (1302, 16706), (2604, 8353)]