21718095

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^3$

素因数の和:101

約数の個数: 64

約数和(自身を含む): 43960320

約数和(自身を除く): 22242225

約数列:

[1, 3, 5, 7, 15, 17, 21, 23, 35, 51, 69, 85, 105, 115, 119, 161, 255, 345, 357, 391, 483, 529, 595, 805, 1173, 1587, 1785, 1955, 2415, 2645, 2737, 3703, 5865, 7935, 8211, 8993, 11109, 12167, 13685, 18515, 26979, 36501, 41055, 44965, 55545, 60835, 62951, 85169, 134895, 182505, 188853, 206839, 255507, 314755, 425845, 620517, 944265, 1034195, 1277535, 1447873, 3102585, 4343619, 7239365, 21718095]

約数ペア:

[(1, 21718095), (3, 7239365), (5, 4343619), (7, 3102585), (15, 1447873), (17, 1277535), (21, 1034195), (23, 944265), (35, 620517), (51, 425845), (69, 314755), (85, 255507), (105, 206839), (115, 188853), (119, 182505), (161, 134895), (255, 85169), (345, 62951), (357, 60835), (391, 55545), (483, 44965), (529, 41055), (595, 36501), (805, 26979), (1173, 18515), (1587, 13685), (1785, 12167), (1955, 11109), (2415, 8993), (2645, 8211), (2737, 7935), (3703, 5865)]