20397468

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{18679}}^1$

素因数の和:18706

約数の個数: 48

約数和(自身を含む): 58580480

約数和(自身を除く): 38183012

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 156, 182, 273, 364, 546, 1092, 18679, 37358, 56037, 74716, 112074, 130753, 224148, 242827, 261506, 392259, 485654, 523012, 728481, 784518, 971308, 1456962, 1569036, 1699789, 2913924, 3399578, 5099367, 6799156, 10198734, 20397468]

約数ペア:

[(1, 20397468), (2, 10198734), (3, 6799156), (4, 5099367), (6, 3399578), (7, 2913924), (12, 1699789), (13, 1569036), (14, 1456962), (21, 971308), (26, 784518), (28, 728481), (39, 523012), (42, 485654), (52, 392259), (78, 261506), (84, 242827), (91, 224148), (156, 130753), (182, 112074), (273, 74716), (364, 56037), (546, 37358), (1092, 18679)]