21873440

素因数分解:

$2^5\times 5^1\times {\mathrm{136709}}^1$

素因数の和:136724

約数の個数: 24

約数和(自身を含む): 51676380

約数和(自身を除く): 29802940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 136709, 273418, 546836, 683545, 1093672, 1367090, 2187344, 2734180, 4374688, 5468360, 10936720, 21873440]

約数ペア:

[(1, 21873440), (2, 10936720), (4, 5468360), (5, 4374688), (8, 2734180), (10, 2187344), (16, 1367090), (20, 1093672), (32, 683545), (40, 546836), (80, 273418), (160, 136709)]