20753668

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{1381}}^1$

素因数の和:1432

約数の個数: 36

約数和(自身を含む): 41578852

約数和(自身を除く): 20825184

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 221, 289, 442, 578, 884, 1156, 1381, 2762, 3757, 5524, 7514, 15028, 17953, 23477, 35906, 46954, 71812, 93908, 305201, 399109, 610402, 798218, 1220804, 1596436, 5188417, 10376834, 20753668]

約数ペア:

[(1, 20753668), (2, 10376834), (4, 5188417), (13, 1596436), (17, 1220804), (26, 798218), (34, 610402), (52, 399109), (68, 305201), (221, 93908), (289, 71812), (442, 46954), (578, 35906), (884, 23477), (1156, 17953), (1381, 15028), (2762, 7514), (3757, 5524)]