21125904

素因数分解:

$2^4\times 3^1\times {\mathrm{67}}^1\times {\mathrm{6569}}^1$

素因数の和:6647

約数の個数: 40

約数和(自身を含む): 55398240

約数和(自身を除く): 34272336

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 67, 134, 201, 268, 402, 536, 804, 1072, 1608, 3216, 6569, 13138, 19707, 26276, 39414, 52552, 78828, 105104, 157656, 315312, 440123, 880246, 1320369, 1760492, 2640738, 3520984, 5281476, 7041968, 10562952, 21125904]

約数ペア:

[(1, 21125904), (2, 10562952), (3, 7041968), (4, 5281476), (6, 3520984), (8, 2640738), (12, 1760492), (16, 1320369), (24, 880246), (48, 440123), (67, 315312), (134, 157656), (201, 105104), (268, 78828), (402, 52552), (536, 39414), (804, 26276), (1072, 19707), (1608, 13138), (3216, 6569)]