19650855

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 38338560

約数和(自身を除く): 18687705

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 79, 103, 105, 115, 161, 237, 309, 345, 395, 483, 515, 553, 721, 805, 1185, 1545, 1659, 1817, 2163, 2369, 2415, 2765, 3605, 5451, 7107, 8137, 8295, 9085, 10815, 11845, 12719, 16583, 24411, 27255, 35535, 38157, 40685, 49749, 56959, 63595, 82915, 122055, 170877, 187151, 190785, 248745, 284795, 561453, 854385, 935755, 1310057, 2807265, 3930171, 6550285, 19650855]

約数ペア:

[(1, 19650855), (3, 6550285), (5, 3930171), (7, 2807265), (15, 1310057), (21, 935755), (23, 854385), (35, 561453), (69, 284795), (79, 248745), (103, 190785), (105, 187151), (115, 170877), (161, 122055), (237, 82915), (309, 63595), (345, 56959), (395, 49749), (483, 40685), (515, 38157), (553, 35535), (721, 27255), (805, 24411), (1185, 16583), (1545, 12719), (1659, 11845), (1817, 10815), (2163, 9085), (2369, 8295), (2415, 8137), (2765, 7107), (3605, 5451)]