21730984

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{317}}^1$

素因数の和:394

約数の個数: 64

約数和(自身を含む): 48081600

約数和(自身を除く): 26350616

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 41, 44, 76, 82, 88, 152, 164, 209, 317, 328, 418, 451, 634, 779, 836, 902, 1268, 1558, 1672, 1804, 2536, 3116, 3487, 3608, 6023, 6232, 6974, 8569, 12046, 12997, 13948, 17138, 24092, 25994, 27896, 34276, 48184, 51988, 66253, 68552, 103976, 132506, 142967, 246943, 265012, 285934, 493886, 530024, 571868, 987772, 1143736, 1975544, 2716373, 5432746, 10865492, 21730984]

約数ペア:

[(1, 21730984), (2, 10865492), (4, 5432746), (8, 2716373), (11, 1975544), (19, 1143736), (22, 987772), (38, 571868), (41, 530024), (44, 493886), (76, 285934), (82, 265012), (88, 246943), (152, 142967), (164, 132506), (209, 103976), (317, 68552), (328, 66253), (418, 51988), (451, 48184), (634, 34276), (779, 27896), (836, 25994), (902, 24092), (1268, 17138), (1558, 13948), (1672, 12997), (1804, 12046), (2536, 8569), (3116, 6974), (3487, 6232), (3608, 6023)]