21517230

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1297}}^1$

素因数の和:1393

約数の個数: 64

約数和(自身を含む): 59811840

約数和(自身を除く): 38294610

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 79, 105, 158, 210, 237, 395, 474, 553, 790, 1106, 1185, 1297, 1659, 2370, 2594, 2765, 3318, 3891, 5530, 6485, 7782, 8295, 9079, 12970, 16590, 18158, 19455, 27237, 38910, 45395, 54474, 90790, 102463, 136185, 204926, 272370, 307389, 512315, 614778, 717241, 1024630, 1434482, 1536945, 2151723, 3073890, 3586205, 4303446, 7172410, 10758615, 21517230]

約数ペア:

[(1, 21517230), (2, 10758615), (3, 7172410), (5, 4303446), (6, 3586205), (7, 3073890), (10, 2151723), (14, 1536945), (15, 1434482), (21, 1024630), (30, 717241), (35, 614778), (42, 512315), (70, 307389), (79, 272370), (105, 204926), (158, 136185), (210, 102463), (237, 90790), (395, 54474), (474, 45395), (553, 38910), (790, 27237), (1106, 19455), (1185, 18158), (1297, 16590), (1659, 12970), (2370, 9079), (2594, 8295), (2765, 7782), (3318, 6485), (3891, 5530)]