21829185

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{131}}^1$

素因数の和:195

約数の個数: 72

約数和(自身を含む): 45549504

約数和(自身を除く): 23720319

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 35, 45, 63, 69, 105, 115, 131, 161, 207, 315, 345, 393, 483, 529, 655, 805, 917, 1035, 1179, 1449, 1587, 1965, 2415, 2645, 2751, 3013, 3703, 4585, 4761, 5895, 7245, 7935, 8253, 9039, 11109, 13755, 15065, 18515, 21091, 23805, 27117, 33327, 41265, 45195, 55545, 63273, 69299, 105455, 135585, 166635, 189819, 207897, 316365, 346495, 485093, 623691, 949095, 1039485, 1455279, 2425465, 3118455, 4365837, 7276395, 21829185]

約数ペア:

[(1, 21829185), (3, 7276395), (5, 4365837), (7, 3118455), (9, 2425465), (15, 1455279), (21, 1039485), (23, 949095), (35, 623691), (45, 485093), (63, 346495), (69, 316365), (105, 207897), (115, 189819), (131, 166635), (161, 135585), (207, 105455), (315, 69299), (345, 63273), (393, 55545), (483, 45195), (529, 41265), (655, 33327), (805, 27117), (917, 23805), (1035, 21091), (1179, 18515), (1449, 15065), (1587, 13755), (1965, 11109), (2415, 9039), (2645, 8253), (2751, 7935), (3013, 7245), (3703, 5895), (4585, 4761)]