21674890

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{2411}}^1$

素因数の和:2478

約数の個数: 32

約数和(自身を含む): 41679360

約数和(自身を除く): 20004470

約数列:

[1, 2, 5, 10, 29, 31, 58, 62, 145, 155, 290, 310, 899, 1798, 2411, 4495, 4822, 8990, 12055, 24110, 69919, 74741, 139838, 149482, 349595, 373705, 699190, 747410, 2167489, 4334978, 10837445, 21674890]

約数ペア:

[(1, 21674890), (2, 10837445), (5, 4334978), (10, 2167489), (29, 747410), (31, 699190), (58, 373705), (62, 349595), (145, 149482), (155, 139838), (290, 74741), (310, 69919), (899, 24110), (1798, 12055), (2411, 8990), (4495, 4822)]