21439132

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1013}}^1$

素因数の和:1078

約数の個数: 48

約数和(自身を含む): 45313632

約数和(自身を除く): 23874500

約数列:

[1, 2, 4, 11, 13, 22, 26, 37, 44, 52, 74, 143, 148, 286, 407, 481, 572, 814, 962, 1013, 1628, 1924, 2026, 4052, 5291, 10582, 11143, 13169, 21164, 22286, 26338, 37481, 44572, 52676, 74962, 144859, 149924, 289718, 412291, 487253, 579436, 824582, 974506, 1649164, 1949012, 5359783, 10719566, 21439132]

約数ペア:

[(1, 21439132), (2, 10719566), (4, 5359783), (11, 1949012), (13, 1649164), (22, 974506), (26, 824582), (37, 579436), (44, 487253), (52, 412291), (74, 289718), (143, 149924), (148, 144859), (286, 74962), (407, 52676), (481, 44572), (572, 37481), (814, 26338), (962, 22286), (1013, 21164), (1628, 13169), (1924, 11143), (2026, 10582), (4052, 5291)]