19010108

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{271}}^1$

素因数の和:378

約数の個数: 48

約数和(自身を含む): 38384640

約数和(自身を除く): 19374532

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 71, 76, 142, 247, 271, 284, 494, 542, 923, 988, 1084, 1349, 1846, 2698, 3523, 3692, 5149, 5396, 7046, 10298, 14092, 17537, 19241, 20596, 35074, 38482, 66937, 70148, 76964, 133874, 250133, 267748, 365579, 500266, 731158, 1000532, 1462316, 4752527, 9505054, 19010108]

約数ペア:

[(1, 19010108), (2, 9505054), (4, 4752527), (13, 1462316), (19, 1000532), (26, 731158), (38, 500266), (52, 365579), (71, 267748), (76, 250133), (142, 133874), (247, 76964), (271, 70148), (284, 66937), (494, 38482), (542, 35074), (923, 20596), (988, 19241), (1084, 17537), (1349, 14092), (1846, 10298), (2698, 7046), (3523, 5396), (3692, 5149)]