21706230

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7951}}^1$

素因数の和:7981

約数の個数: 64

約数和(自身を含む): 64124928

約数和(自身を除く): 42418698

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, 7951, 15902, 23853, 39755, 47706, 55657, 79510, 103363, 111314, 119265, 166971, 206726, 238530, 278285, 310089, 333942, 516815, 556570, 620178, 723541, 834855, 1033630, 1447082, 1550445, 1669710, 2170623, 3100890, 3617705, 4341246, 7235410, 10853115, 21706230]

約数ペア:

[(1, 21706230), (2, 10853115), (3, 7235410), (5, 4341246), (6, 3617705), (7, 3100890), (10, 2170623), (13, 1669710), (14, 1550445), (15, 1447082), (21, 1033630), (26, 834855), (30, 723541), (35, 620178), (39, 556570), (42, 516815), (65, 333942), (70, 310089), (78, 278285), (91, 238530), (105, 206726), (130, 166971), (182, 119265), (195, 111314), (210, 103363), (273, 79510), (390, 55657), (455, 47706), (546, 39755), (910, 23853), (1365, 15902), (2730, 7951)]