21340410

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7817}}^1$

素因数の和:7847

約数の個数: 64

約数和(自身を含む): 63044352

約数和(自身を除く): 41703942

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 182, 195, 210, 273, 390, 455, 546, 910, 1365, 2730, 7817, 15634, 23451, 39085, 46902, 54719, 78170, 101621, 109438, 117255, 164157, 203242, 234510, 273595, 304863, 328314, 508105, 547190, 609726, 711347, 820785, 1016210, 1422694, 1524315, 1641570, 2134041, 3048630, 3556735, 4268082, 7113470, 10670205, 21340410]

約数ペア:

[(1, 21340410), (2, 10670205), (3, 7113470), (5, 4268082), (6, 3556735), (7, 3048630), (10, 2134041), (13, 1641570), (14, 1524315), (15, 1422694), (21, 1016210), (26, 820785), (30, 711347), (35, 609726), (39, 547190), (42, 508105), (65, 328314), (70, 304863), (78, 273595), (91, 234510), (105, 203242), (130, 164157), (182, 117255), (195, 109438), (210, 101621), (273, 78170), (390, 54719), (455, 46902), (546, 39085), (910, 23451), (1365, 15634), (2730, 7817)]