20967536

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{227}}^1\times {\mathrm{251}}^1$

素因数の和:509

約数の個数: 40

約数和(自身を含む): 42747264

約数和(自身を除く): 21779728

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 227, 251, 368, 454, 502, 908, 1004, 1816, 2008, 3632, 4016, 5221, 5773, 10442, 11546, 20884, 23092, 41768, 46184, 56977, 83536, 92368, 113954, 227908, 455816, 911632, 1310471, 2620942, 5241884, 10483768, 20967536]

約数ペア:

[(1, 20967536), (2, 10483768), (4, 5241884), (8, 2620942), (16, 1310471), (23, 911632), (46, 455816), (92, 227908), (184, 113954), (227, 92368), (251, 83536), (368, 56977), (454, 46184), (502, 41768), (908, 23092), (1004, 20884), (1816, 11546), (2008, 10442), (3632, 5773), (4016, 5221)]