21445890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31081}}^1$

素因数の和:31114

約数の個数: 32

約数和(自身を含む): 53709696

約数和(自身を除く): 32263806

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690, 31081, 62162, 93243, 155405, 186486, 310810, 466215, 714863, 932430, 1429726, 2144589, 3574315, 4289178, 7148630, 10722945, 21445890]

約数ペア:

[(1, 21445890), (2, 10722945), (3, 7148630), (5, 4289178), (6, 3574315), (10, 2144589), (15, 1429726), (23, 932430), (30, 714863), (46, 466215), (69, 310810), (115, 186486), (138, 155405), (230, 93243), (345, 62162), (690, 31081)]