21772478

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1$

素因数の和:297

約数の個数: 64

約数和(自身を含む): 44126208

約数和(自身を除く): 22353730

約数列:

[1, 2, 7, 13, 14, 17, 26, 31, 34, 62, 91, 119, 182, 217, 221, 227, 238, 403, 434, 442, 454, 527, 806, 1054, 1547, 1589, 2821, 2951, 3094, 3178, 3689, 3859, 5642, 5902, 6851, 7037, 7378, 7718, 13702, 14074, 20657, 27013, 41314, 47957, 49259, 50167, 54026, 91481, 95914, 98518, 100334, 119629, 182962, 239258, 351169, 640367, 702338, 837403, 1280734, 1555177, 1674806, 3110354, 10886239, 21772478]

約数ペア:

[(1, 21772478), (2, 10886239), (7, 3110354), (13, 1674806), (14, 1555177), (17, 1280734), (26, 837403), (31, 702338), (34, 640367), (62, 351169), (91, 239258), (119, 182962), (182, 119629), (217, 100334), (221, 98518), (227, 95914), (238, 91481), (403, 54026), (434, 50167), (442, 49259), (454, 47957), (527, 41314), (806, 27013), (1054, 20657), (1547, 14074), (1589, 13702), (2821, 7718), (2951, 7378), (3094, 7037), (3178, 6851), (3689, 5902), (3859, 5642)]