21575952

素因数分解:

$2^4\times 3^2\times {\mathrm{269}}^1\times {\mathrm{557}}^1$

素因数の和:840

約数の個数: 60

約数和(自身を含む): 60715980

約数和(自身を除く): 39140028

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 269, 538, 557, 807, 1076, 1114, 1614, 1671, 2152, 2228, 2421, 3228, 3342, 4304, 4456, 4842, 5013, 6456, 6684, 8912, 9684, 10026, 12912, 13368, 19368, 20052, 26736, 38736, 40104, 80208, 149833, 299666, 449499, 599332, 898998, 1198664, 1348497, 1797996, 2397328, 2696994, 3595992, 5393988, 7191984, 10787976, 21575952]

約数ペア:

[(1, 21575952), (2, 10787976), (3, 7191984), (4, 5393988), (6, 3595992), (8, 2696994), (9, 2397328), (12, 1797996), (16, 1348497), (18, 1198664), (24, 898998), (36, 599332), (48, 449499), (72, 299666), (144, 149833), (269, 80208), (538, 40104), (557, 38736), (807, 26736), (1076, 20052), (1114, 19368), (1614, 13368), (1671, 12912), (2152, 10026), (2228, 9684), (2421, 8912), (3228, 6684), (3342, 6456), (4304, 5013), (4456, 4842)]