17820645

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{577}}^1$

素因数の和:685

約数の個数: 32

約数和(自身を含む): 29963520

約数和(自身を除く): 12142875

約数列:

[1, 3, 5, 15, 29, 71, 87, 145, 213, 355, 435, 577, 1065, 1731, 2059, 2885, 6177, 8655, 10295, 16733, 30885, 40967, 50199, 83665, 122901, 204835, 250995, 614505, 1188043, 3564129, 5940215, 17820645]

約数ペア:

[(1, 17820645), (3, 5940215), (5, 3564129), (15, 1188043), (29, 614505), (71, 250995), (87, 204835), (145, 122901), (213, 83665), (355, 50199), (435, 40967), (577, 30885), (1065, 16733), (1731, 10295), (2059, 8655), (2885, 6177)]