31917717

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 52201968

約数和(自身を除く): 20284251

約数列:

[1, 3, 9, 13, 37, 39, 73, 101, 111, 117, 219, 303, 333, 481, 657, 909, 949, 1313, 1443, 2701, 2847, 3737, 3939, 4329, 7373, 8103, 8541, 11211, 11817, 22119, 24309, 33633, 35113, 48581, 66357, 95849, 105339, 145743, 272801, 287547, 316017, 437229, 818403, 862641, 2455209, 3546413, 10639239, 31917717]

約数ペア:

[(1, 31917717), (3, 10639239), (9, 3546413), (13, 2455209), (37, 862641), (39, 818403), (73, 437229), (101, 316017), (111, 287547), (117, 272801), (219, 145743), (303, 105339), (333, 95849), (481, 66357), (657, 48581), (909, 35113), (949, 33633), (1313, 24309), (1443, 22119), (2701, 11817), (2847, 11211), (3737, 8541), (3939, 8103), (4329, 7373)]