21638682

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:228

約数の個数: 96

約数和(自身を含む): 55211520

約数和(自身を除く): 33572838

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 31, 38, 39, 57, 62, 78, 93, 114, 117, 157, 171, 186, 234, 247, 279, 314, 342, 403, 471, 494, 558, 589, 741, 806, 942, 1178, 1209, 1413, 1482, 1767, 2041, 2223, 2418, 2826, 2983, 3534, 3627, 4082, 4446, 4867, 5301, 5966, 6123, 7254, 7657, 8949, 9734, 10602, 12246, 14601, 15314, 17898, 18369, 22971, 26847, 29202, 36738, 38779, 43803, 45942, 53694, 63271, 68913, 77558, 87606, 92473, 116337, 126542, 137826, 184946, 189813, 232674, 277419, 349011, 379626, 554838, 569439, 698022, 832257, 1138878, 1202149, 1664514, 2404298, 3606447, 7212894, 10819341, 21638682]

約数ペア:

[(1, 21638682), (2, 10819341), (3, 7212894), (6, 3606447), (9, 2404298), (13, 1664514), (18, 1202149), (19, 1138878), (26, 832257), (31, 698022), (38, 569439), (39, 554838), (57, 379626), (62, 349011), (78, 277419), (93, 232674), (114, 189813), (117, 184946), (157, 137826), (171, 126542), (186, 116337), (234, 92473), (247, 87606), (279, 77558), (314, 68913), (342, 63271), (403, 53694), (471, 45942), (494, 43803), (558, 38779), (589, 36738), (741, 29202), (806, 26847), (942, 22971), (1178, 18369), (1209, 17898), (1413, 15314), (1482, 14601), (1767, 12246), (2041, 10602), (2223, 9734), (2418, 8949), (2826, 7657), (2983, 7254), (3534, 6123), (3627, 5966), (4082, 5301), (4446, 4867)]