21125790

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{33533}}^1$

素因数の和:33553

約数の個数: 48

約数和(自身を含む): 62775648

約数和(自身を除く): 41649858

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 33533, 67066, 100599, 167665, 201198, 234731, 301797, 335330, 469462, 502995, 603594, 704193, 1005990, 1173655, 1408386, 1508985, 2112579, 2347310, 3017970, 3520965, 4225158, 7041930, 10562895, 21125790]

約数ペア:

[(1, 21125790), (2, 10562895), (3, 7041930), (5, 4225158), (6, 3520965), (7, 3017970), (9, 2347310), (10, 2112579), (14, 1508985), (15, 1408386), (18, 1173655), (21, 1005990), (30, 704193), (35, 603594), (42, 502995), (45, 469462), (63, 335330), (70, 301797), (90, 234731), (105, 201198), (126, 167665), (210, 100599), (315, 67066), (630, 33533)]