13321945

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1$

素因数の和:134

約数の個数: 64

約数和(自身を含む): 21934080

約数和(自身を除く): 8612135

約数列:

[1, 5, 7, 13, 19, 23, 35, 65, 67, 91, 95, 115, 133, 161, 247, 299, 335, 437, 455, 469, 665, 805, 871, 1235, 1273, 1495, 1541, 1729, 2093, 2185, 2345, 3059, 4355, 5681, 6097, 6365, 7705, 8645, 8911, 10465, 10787, 15295, 16549, 20033, 28405, 29279, 30485, 39767, 44555, 53935, 82745, 100165, 115843, 140231, 146395, 198835, 204953, 380627, 579215, 701155, 1024765, 1903135, 2664389, 13321945]

約数ペア:

[(1, 13321945), (5, 2664389), (7, 1903135), (13, 1024765), (19, 701155), (23, 579215), (35, 380627), (65, 204953), (67, 198835), (91, 146395), (95, 140231), (115, 115843), (133, 100165), (161, 82745), (247, 53935), (299, 44555), (335, 39767), (437, 30485), (455, 29279), (469, 28405), (665, 20033), (805, 16549), (871, 15295), (1235, 10787), (1273, 10465), (1495, 8911), (1541, 8645), (1729, 7705), (2093, 6365), (2185, 6097), (2345, 5681), (3059, 4355)]