21889787045

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{18671}}^1$

素因数の和:18786

約数の個数: 64

約数和(自身を含む): 33125621760

約数和(自身を除く): 11235834715

約数列:

[1, 5, 7, 19, 35, 41, 43, 95, 133, 205, 215, 287, 301, 665, 779, 817, 1435, 1505, 1763, 3895, 4085, 5453, 5719, 8815, 12341, 18671, 27265, 28595, 33497, 61705, 93355, 130697, 167485, 234479, 354749, 653485, 765511, 802853, 1172395, 1773745, 2483243, 3827555, 4014265, 5358577, 5619971, 12416215, 14544709, 15254207, 26792885, 28099855, 32916973, 72723545, 76271035, 101812963, 106779449, 164584865, 230418811, 509064815, 533897245, 625422487, 1152094055, 3127112435, 4377957409, 21889787045]

約数ペア:

[(1, 21889787045), (5, 4377957409), (7, 3127112435), (19, 1152094055), (35, 625422487), (41, 533897245), (43, 509064815), (95, 230418811), (133, 164584865), (205, 106779449), (215, 101812963), (287, 76271035), (301, 72723545), (665, 32916973), (779, 28099855), (817, 26792885), (1435, 15254207), (1505, 14544709), (1763, 12416215), (3895, 5619971), (4085, 5358577), (5453, 4014265), (5719, 3827555), (8815, 2483243), (12341, 1773745), (18671, 1172395), (27265, 802853), (28595, 765511), (33497, 653485), (61705, 354749), (93355, 234479), (130697, 167485)]