19218927

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 32749920

約数和(自身を除く): 13530993

約数列:

[1, 3, 7, 13, 21, 39, 49, 89, 91, 113, 147, 267, 273, 339, 623, 637, 791, 1157, 1469, 1869, 1911, 2373, 3471, 4361, 4407, 5537, 8099, 10057, 10283, 13083, 16611, 24297, 30171, 30849, 56693, 70399, 71981, 130741, 170079, 211197, 215943, 392223, 492793, 915187, 1478379, 2745561, 6406309, 19218927]

約数ペア:

[(1, 19218927), (3, 6406309), (7, 2745561), (13, 1478379), (21, 915187), (39, 492793), (49, 392223), (89, 215943), (91, 211197), (113, 170079), (147, 130741), (267, 71981), (273, 70399), (339, 56693), (623, 30849), (637, 30171), (791, 24297), (1157, 16611), (1469, 13083), (1869, 10283), (1911, 10057), (2373, 8099), (3471, 5537), (4361, 4407)]