21869018905

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{3529}}^1$

素因数の和:3674

約数の個数: 64

約数和(自身を含む): 29746886400

約数和(自身を除く): 7877867495

約数列:

[1, 5, 19, 37, 41, 43, 95, 185, 205, 215, 703, 779, 817, 1517, 1591, 1763, 3515, 3529, 3895, 4085, 7585, 7955, 8815, 17645, 28823, 30229, 33497, 65231, 67051, 130573, 144115, 144689, 151145, 151747, 167485, 326155, 335255, 652865, 723445, 758735, 1239389, 2480887, 2749091, 2883193, 5353493, 5614639, 6196945, 6221627, 12404435, 13745455, 14415965, 26767465, 28073195, 31108135, 101716367, 106678141, 118210913, 230200199, 508581835, 533390705, 591054565, 1151000995, 4373803781, 21869018905]

約数ペア:

[(1, 21869018905), (5, 4373803781), (19, 1151000995), (37, 591054565), (41, 533390705), (43, 508581835), (95, 230200199), (185, 118210913), (205, 106678141), (215, 101716367), (703, 31108135), (779, 28073195), (817, 26767465), (1517, 14415965), (1591, 13745455), (1763, 12404435), (3515, 6221627), (3529, 6196945), (3895, 5614639), (4085, 5353493), (7585, 2883193), (7955, 2749091), (8815, 2480887), (17645, 1239389), (28823, 758735), (30229, 723445), (33497, 652865), (65231, 335255), (67051, 326155), (130573, 167485), (144115, 151747), (144689, 151145)]