20194965

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1051}}^1$

素因数の和:1130

約数の個数: 48

約数和(自身を含む): 40699776

約数和(自身を除く): 20504811

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 61, 63, 105, 183, 305, 315, 427, 549, 915, 1051, 1281, 2135, 2745, 3153, 3843, 5255, 6405, 7357, 9459, 15765, 19215, 22071, 36785, 47295, 64111, 66213, 110355, 192333, 320555, 331065, 448777, 576999, 961665, 1346331, 2243885, 2884995, 4038993, 6731655, 20194965]

約数ペア:

[(1, 20194965), (3, 6731655), (5, 4038993), (7, 2884995), (9, 2243885), (15, 1346331), (21, 961665), (35, 576999), (45, 448777), (61, 331065), (63, 320555), (105, 192333), (183, 110355), (305, 66213), (315, 64111), (427, 47295), (549, 36785), (915, 22071), (1051, 19215), (1281, 15765), (2135, 9459), (2745, 7357), (3153, 6405), (3843, 5255)]