21161685

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2677}}^1$

素因数の和:2733

約数の個数: 32

約数和(自身を含む): 37020672

約数和(自身を除く): 15858987

約数列:

[1, 3, 5, 15, 17, 31, 51, 85, 93, 155, 255, 465, 527, 1581, 2635, 2677, 7905, 8031, 13385, 40155, 45509, 82987, 136527, 227545, 248961, 414935, 682635, 1244805, 1410779, 4232337, 7053895, 21161685]

約数ペア:

[(1, 21161685), (3, 7053895), (5, 4232337), (15, 1410779), (17, 1244805), (31, 682635), (51, 414935), (85, 248961), (93, 227545), (155, 136527), (255, 82987), (465, 45509), (527, 40155), (1581, 13385), (2635, 8031), (2677, 7905)]