21909552

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{331}}^1$

素因数の和:546

約数の個数: 80

約数和(自身を含む): 65210112

約数和(自身を除く): 43300560

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 197, 331, 336, 394, 591, 662, 788, 993, 1182, 1324, 1379, 1576, 1986, 2317, 2364, 2648, 2758, 3152, 3972, 4137, 4634, 4728, 5296, 5516, 6951, 7944, 8274, 9268, 9456, 11032, 13902, 15888, 16548, 18536, 22064, 27804, 33096, 37072, 55608, 65207, 66192, 111216, 130414, 195621, 260828, 391242, 456449, 521656, 782484, 912898, 1043312, 1369347, 1564968, 1825796, 2738694, 3129936, 3651592, 5477388, 7303184, 10954776, 21909552]

約数ペア:

[(1, 21909552), (2, 10954776), (3, 7303184), (4, 5477388), (6, 3651592), (7, 3129936), (8, 2738694), (12, 1825796), (14, 1564968), (16, 1369347), (21, 1043312), (24, 912898), (28, 782484), (42, 521656), (48, 456449), (56, 391242), (84, 260828), (112, 195621), (168, 130414), (197, 111216), (331, 66192), (336, 65207), (394, 55608), (591, 37072), (662, 33096), (788, 27804), (993, 22064), (1182, 18536), (1324, 16548), (1379, 15888), (1576, 13902), (1986, 11032), (2317, 9456), (2364, 9268), (2648, 8274), (2758, 7944), (3152, 6951), (3972, 5516), (4137, 5296), (4634, 4728)]