18989833974

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{395671}}^1$

素因数の和:396116

約数の個数: 32

約数和(自身を含む): 40073660160

約数和(自身を除く): 21083826186

約数列:

[1, 2, 3, 6, 19, 38, 57, 114, 421, 842, 1263, 2526, 7999, 15998, 23997, 47994, 395671, 791342, 1187013, 2374026, 7517749, 15035498, 22553247, 45106494, 166577491, 333154982, 499732473, 999464946, 3164972329, 6329944658, 9494916987, 18989833974]

約数ペア:

[(1, 18989833974), (2, 9494916987), (3, 6329944658), (6, 3164972329), (19, 999464946), (38, 499732473), (57, 333154982), (114, 166577491), (421, 45106494), (842, 22553247), (1263, 15035498), (2526, 7517749), (7999, 2374026), (15998, 1187013), (23997, 791342), (47994, 395671)]