21717540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9281}}^1$

素因数の和:9309

約数の個数: 72

約数和(自身を含む): 70951608

約数和(自身を除く): 49234068

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 9281, 18562, 27843, 37124, 46405, 55686, 83529, 92810, 111372, 120653, 139215, 167058, 185620, 241306, 278430, 334116, 361959, 417645, 482612, 556860, 603265, 723918, 835290, 1085877, 1206530, 1447836, 1670580, 1809795, 2171754, 2413060, 3619590, 4343508, 5429385, 7239180, 10858770, 21717540]

約数ペア:

[(1, 21717540), (2, 10858770), (3, 7239180), (4, 5429385), (5, 4343508), (6, 3619590), (9, 2413060), (10, 2171754), (12, 1809795), (13, 1670580), (15, 1447836), (18, 1206530), (20, 1085877), (26, 835290), (30, 723918), (36, 603265), (39, 556860), (45, 482612), (52, 417645), (60, 361959), (65, 334116), (78, 278430), (90, 241306), (117, 185620), (130, 167058), (156, 139215), (180, 120653), (195, 111372), (234, 92810), (260, 83529), (390, 55686), (468, 46405), (585, 37124), (780, 27843), (1170, 18562), (2340, 9281)]