201971805

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{3491}}^1$

素因数の和:3554

約数の個数: 64

約数和(自身を含む): 402278400

約数和(自身を除く): 200306595

約数列:

[1, 3, 5, 7, 15, 19, 21, 29, 35, 57, 87, 95, 105, 133, 145, 203, 285, 399, 435, 551, 609, 665, 1015, 1653, 1995, 2755, 3045, 3491, 3857, 8265, 10473, 11571, 17455, 19285, 24437, 52365, 57855, 66329, 73311, 101239, 122185, 198987, 303717, 331645, 366555, 464303, 506195, 708673, 994935, 1392909, 1518585, 1923541, 2126019, 2321515, 3543365, 5770623, 6964545, 9617705, 10630095, 13464787, 28853115, 40394361, 67323935, 201971805]

約数ペア:

[(1, 201971805), (3, 67323935), (5, 40394361), (7, 28853115), (15, 13464787), (19, 10630095), (21, 9617705), (29, 6964545), (35, 5770623), (57, 3543365), (87, 2321515), (95, 2126019), (105, 1923541), (133, 1518585), (145, 1392909), (203, 994935), (285, 708673), (399, 506195), (435, 464303), (551, 366555), (609, 331645), (665, 303717), (1015, 198987), (1653, 122185), (1995, 101239), (2755, 73311), (3045, 66329), (3491, 57855), (3857, 52365), (8265, 24437), (10473, 19285), (11571, 17455)]