21304814060

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1459}}^1\times {\mathrm{1487}}^1$

素因数の和:3446

約数の個数: 48

約数和(自身を含む): 44892126720

約数和(自身を除く): 23587312660

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1459, 1487, 1964, 2455, 2918, 2974, 4910, 5836, 5948, 7295, 7435, 9820, 14590, 14870, 29180, 29740, 716369, 730117, 1432738, 1460234, 2169533, 2865476, 2920468, 3581845, 3650585, 4339066, 7163690, 7301170, 8678132, 10847665, 14327380, 14602340, 21695330, 43390660, 1065240703, 2130481406, 4260962812, 5326203515, 10652407030, 21304814060]

約数ペア:

[(1, 21304814060), (2, 10652407030), (4, 5326203515), (5, 4260962812), (10, 2130481406), (20, 1065240703), (491, 43390660), (982, 21695330), (1459, 14602340), (1487, 14327380), (1964, 10847665), (2455, 8678132), (2918, 7301170), (2974, 7163690), (4910, 4339066), (5836, 3650585), (5948, 3581845), (7295, 2920468), (7435, 2865476), (9820, 2169533), (14590, 1460234), (14870, 1432738), (29180, 730117), (29740, 716369)]