21666456

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{42989}}^1$

素因数の和:43008

約数の個数: 48

約数和(自身を含む): 67064400

約数和(自身を除く): 45397944

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 42989, 85978, 128967, 171956, 257934, 300923, 343912, 386901, 515868, 601846, 773802, 902769, 1031736, 1203692, 1547604, 1805538, 2407384, 2708307, 3095208, 3611076, 5416614, 7222152, 10833228, 21666456]

約数ペア:

[(1, 21666456), (2, 10833228), (3, 7222152), (4, 5416614), (6, 3611076), (7, 3095208), (8, 2708307), (9, 2407384), (12, 1805538), (14, 1547604), (18, 1203692), (21, 1031736), (24, 902769), (28, 773802), (36, 601846), (42, 515868), (56, 386901), (63, 343912), (72, 300923), (84, 257934), (126, 171956), (168, 128967), (252, 85978), (504, 42989)]