19861138

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{227}}^1$

素因数の和:378

約数の個数: 32

約数和(自身を含む): 33784128

約数和(自身を除く): 13922990

約数列:

[1, 2, 11, 22, 41, 82, 97, 194, 227, 451, 454, 902, 1067, 2134, 2497, 3977, 4994, 7954, 9307, 18614, 22019, 43747, 44038, 87494, 102377, 204754, 242209, 484418, 902779, 1805558, 9930569, 19861138]

約数ペア:

[(1, 19861138), (2, 9930569), (11, 1805558), (22, 902779), (41, 484418), (82, 242209), (97, 204754), (194, 102377), (227, 87494), (451, 44038), (454, 43747), (902, 22019), (1067, 18614), (2134, 9307), (2497, 7954), (3977, 4994)]