21054810

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{14323}}^1$

素因数の和:14347

約数の個数: 48

約数和(自身を含む): 58785696

約数和(自身を除く): 37730886

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 14323, 28646, 42969, 71615, 85938, 100261, 143230, 200522, 214845, 300783, 429690, 501305, 601566, 701827, 1002610, 1403654, 1503915, 2105481, 3007830, 3509135, 4210962, 7018270, 10527405, 21054810]

約数ペア:

[(1, 21054810), (2, 10527405), (3, 7018270), (5, 4210962), (6, 3509135), (7, 3007830), (10, 2105481), (14, 1503915), (15, 1403654), (21, 1002610), (30, 701827), (35, 601566), (42, 501305), (49, 429690), (70, 300783), (98, 214845), (105, 200522), (147, 143230), (210, 100261), (245, 85938), (294, 71615), (490, 42969), (735, 28646), (1470, 14323)]