38819907

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1$

素因数の和:193

約数の個数: 72

約数和(自身を含む): 70958160

約数和(自身を除く): 32138253

約数列:

[1, 3, 7, 9, 19, 21, 41, 49, 57, 63, 113, 123, 133, 147, 171, 287, 339, 369, 399, 441, 779, 791, 861, 931, 1017, 1197, 2009, 2147, 2337, 2373, 2583, 2793, 4633, 5453, 5537, 6027, 6441, 7011, 7119, 8379, 13899, 15029, 16359, 16611, 18081, 19323, 32431, 38171, 41697, 45087, 49077, 49833, 88027, 97293, 105203, 114513, 135261, 227017, 264081, 291879, 315609, 343539, 616189, 681051, 792243, 946827, 1848567, 2043153, 4313323, 5545701, 12939969, 38819907]

約数ペア:

[(1, 38819907), (3, 12939969), (7, 5545701), (9, 4313323), (19, 2043153), (21, 1848567), (41, 946827), (49, 792243), (57, 681051), (63, 616189), (113, 343539), (123, 315609), (133, 291879), (147, 264081), (171, 227017), (287, 135261), (339, 114513), (369, 105203), (399, 97293), (441, 88027), (779, 49833), (791, 49077), (861, 45087), (931, 41697), (1017, 38171), (1197, 32431), (2009, 19323), (2147, 18081), (2337, 16611), (2373, 16359), (2583, 15029), (2793, 13899), (4633, 8379), (5453, 7119), (5537, 7011), (6027, 6441)]