21615230

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23753}}^1$

素因数の和:23780

約数の個数: 32

約数和(自身を含む): 47888064

約数和(自身を除く): 26272834

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 23753, 47506, 118765, 166271, 237530, 308789, 332542, 617578, 831355, 1543945, 1662710, 2161523, 3087890, 4323046, 10807615, 21615230]

約数ペア:

[(1, 21615230), (2, 10807615), (5, 4323046), (7, 3087890), (10, 2161523), (13, 1662710), (14, 1543945), (26, 831355), (35, 617578), (65, 332542), (70, 308789), (91, 237530), (130, 166271), (182, 118765), (455, 47506), (910, 23753)]