21596510

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^3\times {\mathrm{983}}^1$

素因数の和:1029

約数の個数: 32

約数和(自身を含む): 42154560

約数和(自身を除く): 20558050

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 983, 1690, 1966, 2197, 4394, 4915, 9830, 10985, 12779, 21970, 25558, 63895, 127790, 166127, 332254, 830635, 1661270, 2159651, 4319302, 10798255, 21596510]

約数ペア:

[(1, 21596510), (2, 10798255), (5, 4319302), (10, 2159651), (13, 1661270), (26, 830635), (65, 332254), (130, 166127), (169, 127790), (338, 63895), (845, 25558), (983, 21970), (1690, 12779), (1966, 10985), (2197, 9830), (4394, 4915)]