21450338

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1$

素因数の和:291

約数の個数: 48

約数和(自身を含む): 40937400

約数和(自身を除く): 19487062

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 113, 149, 182, 226, 298, 637, 791, 1043, 1274, 1469, 1582, 1937, 2086, 2938, 3874, 5537, 7301, 10283, 11074, 13559, 14602, 16837, 20566, 27118, 33674, 71981, 94913, 117859, 143962, 189826, 218881, 235718, 437762, 825013, 1532167, 1650026, 3064334, 10725169, 21450338]

約数ペア:

[(1, 21450338), (2, 10725169), (7, 3064334), (13, 1650026), (14, 1532167), (26, 825013), (49, 437762), (91, 235718), (98, 218881), (113, 189826), (149, 143962), (182, 117859), (226, 94913), (298, 71981), (637, 33674), (791, 27118), (1043, 20566), (1274, 16837), (1469, 14602), (1582, 13559), (1937, 11074), (2086, 10283), (2938, 7301), (3874, 5537)]