18395988

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{193}}^1$

素因数の和:273

約数の個数: 72

約数和(自身を含む): 47714688

約数和(自身を除く): 29318700

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 47, 52, 78, 94, 141, 156, 169, 188, 193, 282, 338, 386, 507, 564, 579, 611, 676, 772, 1014, 1158, 1222, 1833, 2028, 2316, 2444, 2509, 3666, 5018, 7332, 7527, 7943, 9071, 10036, 15054, 15886, 18142, 23829, 27213, 30108, 31772, 32617, 36284, 47658, 54426, 65234, 95316, 97851, 108852, 117923, 130468, 195702, 235846, 353769, 391404, 471692, 707538, 1415076, 1532999, 3065998, 4598997, 6131996, 9197994, 18395988]

約数ペア:

[(1, 18395988), (2, 9197994), (3, 6131996), (4, 4598997), (6, 3065998), (12, 1532999), (13, 1415076), (26, 707538), (39, 471692), (47, 391404), (52, 353769), (78, 235846), (94, 195702), (141, 130468), (156, 117923), (169, 108852), (188, 97851), (193, 95316), (282, 65234), (338, 54426), (386, 47658), (507, 36284), (564, 32617), (579, 31772), (611, 30108), (676, 27213), (772, 23829), (1014, 18142), (1158, 15886), (1222, 15054), (1833, 10036), (2028, 9071), (2316, 7943), (2444, 7527), (2509, 7332), (3666, 5018)]