21318990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{839}}^1$

素因数の和:878

約数の個数: 96

約数和(自身を含む): 64350720

約数和(自身を除く): 43031730

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 55, 66, 70, 77, 105, 110, 121, 154, 165, 210, 231, 242, 330, 363, 385, 462, 605, 726, 770, 839, 847, 1155, 1210, 1678, 1694, 1815, 2310, 2517, 2541, 3630, 4195, 4235, 5034, 5082, 5873, 8390, 8470, 9229, 11746, 12585, 12705, 17619, 18458, 25170, 25410, 27687, 29365, 35238, 46145, 55374, 58730, 64603, 88095, 92290, 101519, 129206, 138435, 176190, 193809, 203038, 276870, 304557, 323015, 387618, 507595, 609114, 646030, 710633, 969045, 1015190, 1421266, 1522785, 1938090, 2131899, 3045570, 3553165, 4263798, 7106330, 10659495, 21318990]

約数ペア:

[(1, 21318990), (2, 10659495), (3, 7106330), (5, 4263798), (6, 3553165), (7, 3045570), (10, 2131899), (11, 1938090), (14, 1522785), (15, 1421266), (21, 1015190), (22, 969045), (30, 710633), (33, 646030), (35, 609114), (42, 507595), (55, 387618), (66, 323015), (70, 304557), (77, 276870), (105, 203038), (110, 193809), (121, 176190), (154, 138435), (165, 129206), (210, 101519), (231, 92290), (242, 88095), (330, 64603), (363, 58730), (385, 55374), (462, 46145), (605, 35238), (726, 29365), (770, 27687), (839, 25410), (847, 25170), (1155, 18458), (1210, 17619), (1678, 12705), (1694, 12585), (1815, 11746), (2310, 9229), (2517, 8470), (2541, 8390), (3630, 5873), (4195, 5082), (4235, 5034)]