21208256

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{163}}^1$

素因数の和:301

約数の個数: 56

約数和(自身を含む): 44988480

約数和(自身を除く): 23780224

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 107, 152, 163, 214, 304, 326, 428, 608, 652, 856, 1216, 1304, 1712, 2033, 2608, 3097, 3424, 4066, 5216, 6194, 6848, 8132, 10432, 12388, 16264, 17441, 24776, 32528, 34882, 49552, 65056, 69764, 99104, 130112, 139528, 198208, 279056, 331379, 558112, 662758, 1116224, 1325516, 2651032, 5302064, 10604128, 21208256]

約数ペア:

[(1, 21208256), (2, 10604128), (4, 5302064), (8, 2651032), (16, 1325516), (19, 1116224), (32, 662758), (38, 558112), (64, 331379), (76, 279056), (107, 198208), (152, 139528), (163, 130112), (214, 99104), (304, 69764), (326, 65056), (428, 49552), (608, 34882), (652, 32528), (856, 24776), (1216, 17441), (1304, 16264), (1712, 12388), (2033, 10432), (2608, 8132), (3097, 6848), (3424, 6194), (4066, 5216)]