21647370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{229}}^1$

素因数の和:399

約数の個数: 64

約数和(自身を含む): 54846720

約数和(自身を除く): 33199350

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 137, 138, 229, 230, 274, 345, 411, 458, 685, 687, 690, 822, 1145, 1370, 1374, 2055, 2290, 3151, 3435, 4110, 5267, 6302, 6870, 9453, 10534, 15755, 15801, 18906, 26335, 31373, 31510, 31602, 47265, 52670, 62746, 79005, 94119, 94530, 156865, 158010, 188238, 313730, 470595, 721579, 941190, 1443158, 2164737, 3607895, 4329474, 7215790, 10823685, 21647370]

約数ペア:

[(1, 21647370), (2, 10823685), (3, 7215790), (5, 4329474), (6, 3607895), (10, 2164737), (15, 1443158), (23, 941190), (30, 721579), (46, 470595), (69, 313730), (115, 188238), (137, 158010), (138, 156865), (229, 94530), (230, 94119), (274, 79005), (345, 62746), (411, 52670), (458, 47265), (685, 31602), (687, 31510), (690, 31373), (822, 26335), (1145, 18906), (1370, 15801), (1374, 15755), (2055, 10534), (2290, 9453), (3151, 6870), (3435, 6302), (4110, 5267)]