21487936

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{431}}^1$

素因数の和:503

約数の個数: 56

約数和(自身を含む): 46085760

約数和(自身を除く): 24597824

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 41, 64, 76, 82, 152, 164, 304, 328, 431, 608, 656, 779, 862, 1216, 1312, 1558, 1724, 2624, 3116, 3448, 6232, 6896, 8189, 12464, 13792, 16378, 17671, 24928, 27584, 32756, 35342, 49856, 65512, 70684, 131024, 141368, 262048, 282736, 335749, 524096, 565472, 671498, 1130944, 1342996, 2685992, 5371984, 10743968, 21487936]

約数ペア:

[(1, 21487936), (2, 10743968), (4, 5371984), (8, 2685992), (16, 1342996), (19, 1130944), (32, 671498), (38, 565472), (41, 524096), (64, 335749), (76, 282736), (82, 262048), (152, 141368), (164, 131024), (304, 70684), (328, 65512), (431, 49856), (608, 35342), (656, 32756), (779, 27584), (862, 24928), (1216, 17671), (1312, 16378), (1558, 13792), (1724, 12464), (2624, 8189), (3116, 6896), (3448, 6232)]