21274197

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{193}}^1$

素因数の和:413

約数の個数: 32

約数和(自身を含む): 33895680

約数和(自身を除く): 12621483

約数列:

[1, 3, 7, 21, 29, 87, 181, 193, 203, 543, 579, 609, 1267, 1351, 3801, 4053, 5249, 5597, 15747, 16791, 34933, 36743, 39179, 104799, 110229, 117537, 244531, 733593, 1013057, 3039171, 7091399, 21274197]

約数ペア:

[(1, 21274197), (3, 7091399), (7, 3039171), (21, 1013057), (29, 733593), (87, 244531), (181, 117537), (193, 110229), (203, 104799), (543, 39179), (579, 36743), (609, 34933), (1267, 16791), (1351, 15747), (3801, 5597), (4053, 5249)]