18260788

素因数分解:

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

素因数の和:281

約数の個数: 72

約数和(自身を含む): 42057792

約数和(自身を除く): 23797004

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 52, 68, 91, 119, 169, 182, 221, 227, 238, 338, 364, 442, 454, 476, 676, 884, 908, 1183, 1547, 1589, 2366, 2873, 2951, 3094, 3178, 3859, 4732, 5746, 5902, 6188, 6356, 7718, 11492, 11804, 15436, 20111, 20657, 27013, 38363, 40222, 41314, 50167, 54026, 76726, 80444, 82628, 100334, 108052, 153452, 200668, 268541, 351169, 537082, 652171, 702338, 1074164, 1304342, 1404676, 2608684, 4565197, 9130394, 18260788]

約数ペア:

[(1, 18260788), (2, 9130394), (4, 4565197), (7, 2608684), (13, 1404676), (14, 1304342), (17, 1074164), (26, 702338), (28, 652171), (34, 537082), (52, 351169), (68, 268541), (91, 200668), (119, 153452), (169, 108052), (182, 100334), (221, 82628), (227, 80444), (238, 76726), (338, 54026), (364, 50167), (442, 41314), (454, 40222), (476, 38363), (676, 27013), (884, 20657), (908, 20111), (1183, 15436), (1547, 11804), (1589, 11492), (2366, 7718), (2873, 6356), (2951, 6188), (3094, 5902), (3178, 5746), (3859, 4732)]