21587648

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{433}}^1$

素因数の和:505

約数の個数: 56

約数和(自身を含む): 46299120

約数和(自身を除く): 24711472

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 41, 64, 76, 82, 152, 164, 304, 328, 433, 608, 656, 779, 866, 1216, 1312, 1558, 1732, 2624, 3116, 3464, 6232, 6928, 8227, 12464, 13856, 16454, 17753, 24928, 27712, 32908, 35506, 49856, 65816, 71012, 131632, 142024, 263264, 284048, 337307, 526528, 568096, 674614, 1136192, 1349228, 2698456, 5396912, 10793824, 21587648]

約数ペア:

[(1, 21587648), (2, 10793824), (4, 5396912), (8, 2698456), (16, 1349228), (19, 1136192), (32, 674614), (38, 568096), (41, 526528), (64, 337307), (76, 284048), (82, 263264), (152, 142024), (164, 131632), (304, 71012), (328, 65816), (433, 49856), (608, 35506), (656, 32908), (779, 27712), (866, 24928), (1216, 17753), (1312, 16454), (1558, 13856), (1732, 12464), (2624, 8227), (3116, 6928), (3464, 6232)]