21586192

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1301}}^1$

素因数の和:1387

約数の個数: 40

約数和(自身を含む): 45043992

約数和(自身を除く): 23457800

約数列:

[1, 2, 4, 8, 16, 17, 34, 61, 68, 122, 136, 244, 272, 488, 976, 1037, 1301, 2074, 2602, 4148, 5204, 8296, 10408, 16592, 20816, 22117, 44234, 79361, 88468, 158722, 176936, 317444, 353872, 634888, 1269776, 1349137, 2698274, 5396548, 10793096, 21586192]

約数ペア:

[(1, 21586192), (2, 10793096), (4, 5396548), (8, 2698274), (16, 1349137), (17, 1269776), (34, 634888), (61, 353872), (68, 317444), (122, 176936), (136, 158722), (244, 88468), (272, 79361), (488, 44234), (976, 22117), (1037, 20816), (1301, 16592), (2074, 10408), (2602, 8296), (4148, 5204)]