18641974

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{229}}^1$

素因数の和:376

約数の個数: 32

約数和(自身を含む): 31530240

約数和(自身を除く): 12888266

約数列:

[1, 2, 13, 26, 31, 62, 101, 202, 229, 403, 458, 806, 1313, 2626, 2977, 3131, 5954, 6262, 7099, 14198, 23129, 40703, 46258, 81406, 92287, 184574, 300677, 601354, 716999, 1433998, 9320987, 18641974]

約数ペア:

[(1, 18641974), (2, 9320987), (13, 1433998), (26, 716999), (31, 601354), (62, 300677), (101, 184574), (202, 92287), (229, 81406), (403, 46258), (458, 40703), (806, 23129), (1313, 14198), (2626, 7099), (2977, 6262), (3131, 5954)]