20216975317

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{659}}^1$

素因数の和:911

約数の個数: 64

約数和(自身を含む): 26459136000

約数和(自身を除く): 6242160683

約数列:

[1, 7, 11, 47, 49, 77, 173, 329, 343, 517, 539, 659, 1211, 1903, 2303, 3619, 3773, 4613, 7249, 8131, 8477, 13321, 16121, 25333, 30973, 32291, 50743, 56917, 59339, 89441, 93247, 114007, 177331, 216811, 226037, 340703, 355201, 398419, 626087, 652729, 798049, 1254077, 1517677, 2384921, 2486407, 2788933, 4382609, 5358329, 5586343, 8778539, 10623739, 16694447, 30678263, 37508303, 39104401, 58941619, 61449773, 116861129, 262558121, 412591333, 430148411, 1837906847, 2888139331, 20216975317]

約数ペア:

[(1, 20216975317), (7, 2888139331), (11, 1837906847), (47, 430148411), (49, 412591333), (77, 262558121), (173, 116861129), (329, 61449773), (343, 58941619), (517, 39104401), (539, 37508303), (659, 30678263), (1211, 16694447), (1903, 10623739), (2303, 8778539), (3619, 5586343), (3773, 5358329), (4613, 4382609), (7249, 2788933), (8131, 2486407), (8477, 2384921), (13321, 1517677), (16121, 1254077), (25333, 798049), (30973, 652729), (32291, 626087), (50743, 398419), (56917, 355201), (59339, 340703), (89441, 226037), (93247, 216811), (114007, 177331)]