21491522

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{433}}^1$

素因数の和:554

約数の個数: 32

約数和(自身を含む): 36747648

約数和(自身を除く): 15256126

約数列:

[1, 2, 13, 23, 26, 46, 83, 166, 299, 433, 598, 866, 1079, 1909, 2158, 3818, 5629, 9959, 11258, 19918, 24817, 35939, 49634, 71878, 129467, 258934, 467207, 826597, 934414, 1653194, 10745761, 21491522]

約数ペア:

[(1, 21491522), (2, 10745761), (13, 1653194), (23, 934414), (26, 826597), (46, 467207), (83, 258934), (166, 129467), (299, 71878), (433, 49634), (598, 35939), (866, 24817), (1079, 19918), (1909, 11258), (2158, 9959), (3818, 5629)]