20689488

素因数分解:

$2^4\times 3^2\times {\mathrm{143677}}^1$

素因数の和:143691

約数の個数: 30

約数和(自身を含む): 57902234

約数和(自身を除く): 37212746

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 143677, 287354, 431031, 574708, 862062, 1149416, 1293093, 1724124, 2298832, 2586186, 3448248, 5172372, 6896496, 10344744, 20689488]

約数ペア:

[(1, 20689488), (2, 10344744), (3, 6896496), (4, 5172372), (6, 3448248), (8, 2586186), (9, 2298832), (12, 1724124), (16, 1293093), (18, 1149416), (24, 862062), (36, 574708), (48, 431031), (72, 287354), (144, 143677)]