19949706

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{593}}^1$

素因数の和:700

約数の個数: 64

約数和(自身を含む): 51321600

約数和(自身を除く): 31371894

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 89, 126, 178, 189, 267, 378, 534, 593, 623, 801, 1186, 1246, 1602, 1779, 1869, 2403, 3558, 3738, 4151, 4806, 5337, 5607, 8302, 10674, 11214, 12453, 16011, 16821, 24906, 32022, 33642, 37359, 52777, 74718, 105554, 112077, 158331, 224154, 316662, 369439, 474993, 738878, 949986, 1108317, 1424979, 2216634, 2849958, 3324951, 6649902, 9974853, 19949706]

約数ペア:

[(1, 19949706), (2, 9974853), (3, 6649902), (6, 3324951), (7, 2849958), (9, 2216634), (14, 1424979), (18, 1108317), (21, 949986), (27, 738878), (42, 474993), (54, 369439), (63, 316662), (89, 224154), (126, 158331), (178, 112077), (189, 105554), (267, 74718), (378, 52777), (534, 37359), (593, 33642), (623, 32022), (801, 24906), (1186, 16821), (1246, 16011), (1602, 12453), (1779, 11214), (1869, 10674), (2403, 8302), (3558, 5607), (3738, 5337), (4151, 4806)]