21651056

素因数分解:

$2^4\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2447}}^1$

素因数の和:2541

約数の個数: 40

約数和(自身を含む): 48568320

約数和(自身を除く): 26917264

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 79, 112, 158, 316, 553, 632, 1106, 1264, 2212, 2447, 4424, 4894, 8848, 9788, 17129, 19576, 34258, 39152, 68516, 137032, 193313, 274064, 386626, 773252, 1353191, 1546504, 2706382, 3093008, 5412764, 10825528, 21651056]

約数ペア:

[(1, 21651056), (2, 10825528), (4, 5412764), (7, 3093008), (8, 2706382), (14, 1546504), (16, 1353191), (28, 773252), (56, 386626), (79, 274064), (112, 193313), (158, 137032), (316, 68516), (553, 39152), (632, 34258), (1106, 19576), (1264, 17129), (2212, 9788), (2447, 8848), (4424, 4894)]