19919692

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{373}}^1$

素因数の和:482

約数の個数: 36

約数和(自身を含む): 38327520

約数和(自身を除く): 18407828

約数列:

[1, 2, 4, 13, 26, 52, 79, 158, 169, 316, 338, 373, 676, 746, 1027, 1492, 2054, 4108, 4849, 9698, 13351, 19396, 26702, 29467, 53404, 58934, 63037, 117868, 126074, 252148, 383071, 766142, 1532284, 4979923, 9959846, 19919692]

約数ペア:

[(1, 19919692), (2, 9959846), (4, 4979923), (13, 1532284), (26, 766142), (52, 383071), (79, 252148), (158, 126074), (169, 117868), (316, 63037), (338, 58934), (373, 53404), (676, 29467), (746, 26702), (1027, 19396), (1492, 13351), (2054, 9698), (4108, 4849)]