21988434

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{401}}^1$

素因数の和:475

約数の個数: 64

約数和(自身を含む): 51327360

約数和(自身を除く): 29338926

約数列:

[1, 2, 3, 6, 13, 19, 26, 37, 38, 39, 57, 74, 78, 111, 114, 222, 247, 401, 481, 494, 703, 741, 802, 962, 1203, 1406, 1443, 1482, 2109, 2406, 2886, 4218, 5213, 7619, 9139, 10426, 14837, 15238, 15639, 18278, 22857, 27417, 29674, 31278, 44511, 45714, 54834, 89022, 99047, 192881, 198094, 281903, 297141, 385762, 563806, 578643, 594282, 845709, 1157286, 1691418, 3664739, 7329478, 10994217, 21988434]

約数ペア:

[(1, 21988434), (2, 10994217), (3, 7329478), (6, 3664739), (13, 1691418), (19, 1157286), (26, 845709), (37, 594282), (38, 578643), (39, 563806), (57, 385762), (74, 297141), (78, 281903), (111, 198094), (114, 192881), (222, 99047), (247, 89022), (401, 54834), (481, 45714), (494, 44511), (703, 31278), (741, 29674), (802, 27417), (962, 22857), (1203, 18278), (1406, 15639), (1443, 15238), (1482, 14837), (2109, 10426), (2406, 9139), (2886, 7619), (4218, 5213)]