31905783

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{239}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 57308160

約数和(自身を除く): 25402377

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 163, 239, 273, 489, 717, 819, 1141, 1467, 1673, 2119, 2151, 3107, 3423, 5019, 6357, 9321, 10269, 14833, 15057, 19071, 21749, 27963, 38957, 44499, 65247, 116871, 133497, 195741, 272699, 350613, 506441, 818097, 1519323, 2454291, 3545087, 4557969, 10635261, 31905783]

約数ペア:

[(1, 31905783), (3, 10635261), (7, 4557969), (9, 3545087), (13, 2454291), (21, 1519323), (39, 818097), (63, 506441), (91, 350613), (117, 272699), (163, 195741), (239, 133497), (273, 116871), (489, 65247), (717, 44499), (819, 38957), (1141, 27963), (1467, 21749), (1673, 19071), (2119, 15057), (2151, 14833), (3107, 10269), (3423, 9321), (5019, 6357)]