21371760

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29683}}^1$

素因数の和:29702

約数の個数: 60

約数和(自身を含む): 71775912

約数和(自身を除く): 50404152

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 29683, 59366, 89049, 118732, 148415, 178098, 237464, 267147, 296830, 356196, 445245, 474928, 534294, 593660, 712392, 890490, 1068588, 1187320, 1335735, 1424784, 1780980, 2137176, 2374640, 2671470, 3561960, 4274352, 5342940, 7123920, 10685880, 21371760]

約数ペア:

[(1, 21371760), (2, 10685880), (3, 7123920), (4, 5342940), (5, 4274352), (6, 3561960), (8, 2671470), (9, 2374640), (10, 2137176), (12, 1780980), (15, 1424784), (16, 1335735), (18, 1187320), (20, 1068588), (24, 890490), (30, 712392), (36, 593660), (40, 534294), (45, 474928), (48, 445245), (60, 356196), (72, 296830), (80, 267147), (90, 237464), (120, 178098), (144, 148415), (180, 118732), (240, 89049), (360, 59366), (720, 29683)]