21409980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{3533}}^1$

素因数の和:3646

約数の個数: 48

約数和(自身を含む): 60558624

約数和(自身を除く): 39148644

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 101, 202, 303, 404, 505, 606, 1010, 1212, 1515, 2020, 3030, 3533, 6060, 7066, 10599, 14132, 17665, 21198, 35330, 42396, 52995, 70660, 105990, 211980, 356833, 713666, 1070499, 1427332, 1784165, 2140998, 3568330, 4281996, 5352495, 7136660, 10704990, 21409980]

約数ペア:

[(1, 21409980), (2, 10704990), (3, 7136660), (4, 5352495), (5, 4281996), (6, 3568330), (10, 2140998), (12, 1784165), (15, 1427332), (20, 1070499), (30, 713666), (60, 356833), (101, 211980), (202, 105990), (303, 70660), (404, 52995), (505, 42396), (606, 35330), (1010, 21198), (1212, 17665), (1515, 14132), (2020, 10599), (3030, 7066), (3533, 6060)]