81984693

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{619}}^1$

素因数の和:706

約数の個数: 48

約数和(自身を含む): 137401920

約数和(自身を除く): 55417227

約数列:

[1, 3, 7, 17, 21, 49, 51, 53, 119, 147, 159, 357, 371, 619, 833, 901, 1113, 1857, 2499, 2597, 2703, 4333, 6307, 7791, 10523, 12999, 18921, 30331, 31569, 32807, 44149, 73661, 90993, 98421, 132447, 220983, 229649, 515627, 557719, 688947, 1546881, 1607543, 1673157, 3904033, 4822629, 11712099, 27328231, 81984693]

約数ペア:

[(1, 81984693), (3, 27328231), (7, 11712099), (17, 4822629), (21, 3904033), (49, 1673157), (51, 1607543), (53, 1546881), (119, 688947), (147, 557719), (159, 515627), (357, 229649), (371, 220983), (619, 132447), (833, 98421), (901, 90993), (1113, 73661), (1857, 44149), (2499, 32807), (2597, 31569), (2703, 30331), (4333, 18921), (6307, 12999), (7791, 10523)]