18538832

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4691}}^1$

素因数の和:4731

約数の個数: 40

約数和(自身を含む): 40726560

約数和(自身を除く): 22187728

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 4691, 9382, 18764, 37528, 60983, 75056, 89129, 121966, 178258, 243932, 356516, 487864, 713032, 975728, 1158677, 1426064, 2317354, 4634708, 9269416, 18538832]

約数ペア:

[(1, 18538832), (2, 9269416), (4, 4634708), (8, 2317354), (13, 1426064), (16, 1158677), (19, 975728), (26, 713032), (38, 487864), (52, 356516), (76, 243932), (104, 178258), (152, 121966), (208, 89129), (247, 75056), (304, 60983), (494, 37528), (988, 18764), (1976, 9382), (3952, 4691)]