21346390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{743}}^1$

素因数の和:793

約数の個数: 48

約数和(自身を含む): 44113248

約数和(自身を除く): 22766858

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 169, 170, 221, 338, 442, 743, 845, 1105, 1486, 1690, 2210, 2873, 3715, 5746, 7430, 9659, 12631, 14365, 19318, 25262, 28730, 48295, 63155, 96590, 125567, 126310, 164203, 251134, 328406, 627835, 821015, 1255670, 1642030, 2134639, 4269278, 10673195, 21346390]

約数ペア:

[(1, 21346390), (2, 10673195), (5, 4269278), (10, 2134639), (13, 1642030), (17, 1255670), (26, 821015), (34, 627835), (65, 328406), (85, 251134), (130, 164203), (169, 126310), (170, 125567), (221, 96590), (338, 63155), (442, 48295), (743, 28730), (845, 25262), (1105, 19318), (1486, 14365), (1690, 12631), (2210, 9659), (2873, 7430), (3715, 5746)]