20190331

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:199

約数の個数: 32

約数和(自身を含む): 25804800

約数和(自身を除く): 5614469

約数列:

[1, 7, 19, 31, 59, 83, 133, 217, 413, 581, 589, 1121, 1577, 1829, 2573, 4123, 4897, 7847, 11039, 12803, 18011, 34279, 34751, 48887, 93043, 151807, 243257, 342209, 651301, 1062649, 2884333, 20190331]

約数ペア:

[(1, 20190331), (7, 2884333), (19, 1062649), (31, 651301), (59, 342209), (83, 243257), (133, 151807), (217, 93043), (413, 48887), (581, 34751), (589, 34279), (1121, 18011), (1577, 12803), (1829, 11039), (2573, 7847), (4123, 4897)]