21715316

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{569}}^1$

素因数の和:656

約数の個数: 48

約数和(自身を含む): 45964800

約数和(自身を除く): 24249484

約数列:

[1, 2, 4, 7, 14, 28, 29, 47, 58, 94, 116, 188, 203, 329, 406, 569, 658, 812, 1138, 1316, 1363, 2276, 2726, 3983, 5452, 7966, 9541, 15932, 16501, 19082, 26743, 33002, 38164, 53486, 66004, 106972, 115507, 187201, 231014, 374402, 462028, 748804, 775547, 1551094, 3102188, 5428829, 10857658, 21715316]

約数ペア:

[(1, 21715316), (2, 10857658), (4, 5428829), (7, 3102188), (14, 1551094), (28, 775547), (29, 748804), (47, 462028), (58, 374402), (94, 231014), (116, 187201), (188, 115507), (203, 106972), (329, 66004), (406, 53486), (569, 38164), (658, 33002), (812, 26743), (1138, 19082), (1316, 16501), (1363, 15932), (2276, 9541), (2726, 7966), (3983, 5452)]