20897422

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{349}}^1$

素因数の和:425

約数の個数: 48

約数和(自身を含む): 40219200

約数和(自身を除く): 19321778

約数列:

[1, 2, 7, 13, 14, 26, 47, 49, 91, 94, 98, 182, 329, 349, 611, 637, 658, 698, 1222, 1274, 2303, 2443, 4277, 4537, 4606, 4886, 8554, 9074, 16403, 17101, 29939, 31759, 32806, 34202, 59878, 63518, 114821, 213239, 222313, 229642, 426478, 444626, 803747, 1492673, 1607494, 2985346, 10448711, 20897422]

約数ペア:

[(1, 20897422), (2, 10448711), (7, 2985346), (13, 1607494), (14, 1492673), (26, 803747), (47, 444626), (49, 426478), (91, 229642), (94, 222313), (98, 213239), (182, 114821), (329, 63518), (349, 59878), (611, 34202), (637, 32806), (658, 31759), (698, 29939), (1222, 17101), (1274, 16403), (2303, 9074), (2443, 8554), (4277, 4886), (4537, 4606)]