21909455425

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{41131}}^1$

素因数の和:41314

約数の個数: 48

約数和(自身を含む): 32132318400

約数和(自身を除く): 10222862975

約数列:

[1, 5, 11, 13, 25, 55, 65, 143, 149, 275, 325, 715, 745, 1639, 1937, 3575, 3725, 8195, 9685, 21307, 40975, 41131, 48425, 106535, 205655, 452441, 532675, 534703, 1028275, 2262205, 2673515, 5881733, 6128519, 11311025, 13367575, 29408665, 30642595, 67413709, 79670747, 147043325, 153212975, 337068545, 398353735, 876378217, 1685342725, 1991768675, 4381891085, 21909455425]

約数ペア:

[(1, 21909455425), (5, 4381891085), (11, 1991768675), (13, 1685342725), (25, 876378217), (55, 398353735), (65, 337068545), (143, 153212975), (149, 147043325), (275, 79670747), (325, 67413709), (715, 30642595), (745, 29408665), (1639, 13367575), (1937, 11311025), (3575, 6128519), (3725, 5881733), (8195, 2673515), (9685, 2262205), (21307, 1028275), (40975, 534703), (41131, 532675), (48425, 452441), (106535, 205655)]