20778226

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{683}}^1$

素因数の和:786

約数の個数: 32

約数和(自身を含む): 37231488

約数和(自身を除く): 16453262

約数列:

[1, 2, 7, 14, 41, 53, 82, 106, 287, 371, 574, 683, 742, 1366, 2173, 4346, 4781, 9562, 15211, 28003, 30422, 36199, 56006, 72398, 196021, 253393, 392042, 506786, 1484159, 2968318, 10389113, 20778226]

約数ペア:

[(1, 20778226), (2, 10389113), (7, 2968318), (14, 1484159), (41, 506786), (53, 392042), (82, 253393), (106, 196021), (287, 72398), (371, 56006), (574, 36199), (683, 30422), (742, 28003), (1366, 15211), (2173, 9562), (4346, 4781)]