19997628

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{751}}^1$

素因数の和:1082

約数の個数: 48

約数和(自身を含む): 53566464

約数和(自身を除く): 33568836

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 317, 634, 751, 951, 1268, 1502, 1902, 2219, 2253, 3004, 3804, 4438, 4506, 5257, 6657, 8876, 9012, 10514, 13314, 15771, 21028, 26628, 31542, 63084, 238067, 476134, 714201, 952268, 1428402, 1666469, 2856804, 3332938, 4999407, 6665876, 9998814, 19997628]

約数ペア:

[(1, 19997628), (2, 9998814), (3, 6665876), (4, 4999407), (6, 3332938), (7, 2856804), (12, 1666469), (14, 1428402), (21, 952268), (28, 714201), (42, 476134), (84, 238067), (317, 63084), (634, 31542), (751, 26628), (951, 21028), (1268, 15771), (1502, 13314), (1902, 10514), (2219, 9012), (2253, 8876), (3004, 6657), (3804, 5257), (4438, 4506)]