21094980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{269}}^1\times {\mathrm{1307}}^1$

素因数の和:1588

約数の個数: 48

約数和(自身を含む): 59330880

約数和(自身を除く): 38235900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 269, 538, 807, 1076, 1307, 1345, 1614, 2614, 2690, 3228, 3921, 4035, 5228, 5380, 6535, 7842, 8070, 13070, 15684, 16140, 19605, 26140, 39210, 78420, 351583, 703166, 1054749, 1406332, 1757915, 2109498, 3515830, 4218996, 5273745, 7031660, 10547490, 21094980]

約数ペア:

[(1, 21094980), (2, 10547490), (3, 7031660), (4, 5273745), (5, 4218996), (6, 3515830), (10, 2109498), (12, 1757915), (15, 1406332), (20, 1054749), (30, 703166), (60, 351583), (269, 78420), (538, 39210), (807, 26140), (1076, 19605), (1307, 16140), (1345, 15684), (1614, 13070), (2614, 8070), (2690, 7842), (3228, 6535), (3921, 5380), (4035, 5228)]