20954024

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{269}}^1$

素因数の和:402

約数の個数: 64

約数和(自身を含む): 48988800

約数和(自身を除く): 28034776

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 107, 182, 214, 269, 364, 428, 538, 728, 749, 856, 1076, 1391, 1498, 1883, 2152, 2782, 2996, 3497, 3766, 5564, 5992, 6994, 7532, 9737, 11128, 13988, 15064, 19474, 24479, 27976, 28783, 38948, 48958, 57566, 77896, 97916, 115132, 195832, 201481, 230264, 374179, 402962, 748358, 805924, 1496716, 1611848, 2619253, 2993432, 5238506, 10477012, 20954024]

約数ペア:

[(1, 20954024), (2, 10477012), (4, 5238506), (7, 2993432), (8, 2619253), (13, 1611848), (14, 1496716), (26, 805924), (28, 748358), (52, 402962), (56, 374179), (91, 230264), (104, 201481), (107, 195832), (182, 115132), (214, 97916), (269, 77896), (364, 57566), (428, 48958), (538, 38948), (728, 28783), (749, 27976), (856, 24479), (1076, 19474), (1391, 15064), (1498, 13988), (1883, 11128), (2152, 9737), (2782, 7532), (2996, 6994), (3497, 5992), (3766, 5564)]