19991968

素因数分解:

$2^5\times {\mathrm{23}}^2\times {\mathrm{1181}}^1$

素因数の和:1237

約数の個数: 36

約数和(自身を含む): 41179698

約数和(自身を除く): 21187730

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 92, 184, 368, 529, 736, 1058, 1181, 2116, 2362, 4232, 4724, 8464, 9448, 16928, 18896, 27163, 37792, 54326, 108652, 217304, 434608, 624749, 869216, 1249498, 2498996, 4997992, 9995984, 19991968]

約数ペア:

[(1, 19991968), (2, 9995984), (4, 4997992), (8, 2498996), (16, 1249498), (23, 869216), (32, 624749), (46, 434608), (92, 217304), (184, 108652), (368, 54326), (529, 37792), (736, 27163), (1058, 18896), (1181, 16928), (2116, 9448), (2362, 8464), (4232, 4724)]