20668816966

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{241}}^1\times {\mathrm{1307}}^1$

素因数の和:1709

約数の個数: 64

約数和(自身を含む): 36768821760

約数和(自身を除く): 16100004794

約数列:

[1, 2, 7, 14, 43, 86, 109, 218, 241, 301, 482, 602, 763, 1307, 1526, 1687, 2614, 3374, 4687, 9149, 9374, 10363, 18298, 20726, 26269, 32809, 52538, 56201, 65618, 72541, 112402, 142463, 145082, 183883, 284926, 314987, 367766, 393407, 629974, 786814, 997241, 1129567, 1994482, 2204909, 2259134, 4409818, 6125909, 7906969, 12251818, 13544441, 15813938, 27088882, 34333583, 42881363, 68667166, 85762726, 94811087, 189622174, 240335081, 480670162, 1476344069, 2952688138, 10334408483, 20668816966]

約数ペア:

[(1, 20668816966), (2, 10334408483), (7, 2952688138), (14, 1476344069), (43, 480670162), (86, 240335081), (109, 189622174), (218, 94811087), (241, 85762726), (301, 68667166), (482, 42881363), (602, 34333583), (763, 27088882), (1307, 15813938), (1526, 13544441), (1687, 12251818), (2614, 7906969), (3374, 6125909), (4687, 4409818), (9149, 2259134), (9374, 2204909), (10363, 1994482), (18298, 1129567), (20726, 997241), (26269, 786814), (32809, 629974), (52538, 393407), (56201, 367766), (65618, 314987), (72541, 284926), (112402, 183883), (142463, 145082)]