20976088

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{281}}^1$

素因数の和:368

約数の個数: 64

約数和(自身を含む): 47646720

約数和(自身を除く): 26670632

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 43, 56, 62, 86, 124, 172, 217, 248, 281, 301, 344, 434, 562, 602, 868, 1124, 1204, 1333, 1736, 1967, 2248, 2408, 2666, 3934, 5332, 7868, 8711, 9331, 10664, 12083, 15736, 17422, 18662, 24166, 34844, 37324, 48332, 60977, 69688, 74648, 84581, 96664, 121954, 169162, 243908, 338324, 374573, 487816, 676648, 749146, 1498292, 2622011, 2996584, 5244022, 10488044, 20976088]

約数ペア:

[(1, 20976088), (2, 10488044), (4, 5244022), (7, 2996584), (8, 2622011), (14, 1498292), (28, 749146), (31, 676648), (43, 487816), (56, 374573), (62, 338324), (86, 243908), (124, 169162), (172, 121954), (217, 96664), (248, 84581), (281, 74648), (301, 69688), (344, 60977), (434, 48332), (562, 37324), (602, 34844), (868, 24166), (1124, 18662), (1204, 17422), (1333, 15736), (1736, 12083), (1967, 10664), (2248, 9331), (2408, 8711), (2666, 7868), (3934, 5332)]