21677355

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{113}}^1$

素因数の和:170

約数の個数: 96

約数和(自身を含む): 46785600

約数和(自身を除く): 25108245

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 29, 35, 45, 49, 63, 87, 105, 113, 135, 145, 147, 189, 203, 245, 261, 315, 339, 435, 441, 565, 609, 735, 783, 791, 945, 1015, 1017, 1305, 1323, 1421, 1695, 1827, 2205, 2373, 3045, 3051, 3277, 3915, 3955, 4263, 5085, 5481, 5537, 6615, 7105, 7119, 9135, 9831, 11865, 12789, 15255, 16385, 16611, 21315, 21357, 22939, 27405, 27685, 29493, 35595, 38367, 49155, 49833, 63945, 68817, 83055, 88479, 106785, 114695, 147465, 149499, 160573, 191835, 206451, 249165, 344085, 442395, 481719, 619353, 747495, 802865, 1032255, 1445157, 2408595, 3096765, 4335471, 7225785, 21677355]

約数ペア:

[(1, 21677355), (3, 7225785), (5, 4335471), (7, 3096765), (9, 2408595), (15, 1445157), (21, 1032255), (27, 802865), (29, 747495), (35, 619353), (45, 481719), (49, 442395), (63, 344085), (87, 249165), (105, 206451), (113, 191835), (135, 160573), (145, 149499), (147, 147465), (189, 114695), (203, 106785), (245, 88479), (261, 83055), (315, 68817), (339, 63945), (435, 49833), (441, 49155), (565, 38367), (609, 35595), (735, 29493), (783, 27685), (791, 27405), (945, 22939), (1015, 21357), (1017, 21315), (1305, 16611), (1323, 16385), (1421, 15255), (1695, 12789), (1827, 11865), (2205, 9831), (2373, 9135), (3045, 7119), (3051, 7105), (3277, 6615), (3915, 5537), (3955, 5481), (4263, 5085)]