21183890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23279}}^1$

素因数の和:23306

約数の個数: 32

約数和(自身を含む): 46932480

約数和(自身を除く): 25748590

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 23279, 46558, 116395, 162953, 232790, 302627, 325906, 605254, 814765, 1513135, 1629530, 2118389, 3026270, 4236778, 10591945, 21183890]

約数ペア:

[(1, 21183890), (2, 10591945), (5, 4236778), (7, 3026270), (10, 2118389), (13, 1629530), (14, 1513135), (26, 814765), (35, 605254), (65, 325906), (70, 302627), (91, 232790), (130, 162953), (182, 116395), (455, 46558), (910, 23279)]