21377340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1051}}^1$

素因数の和:1179

約数の個数: 72

約数和(自身を含む): 65480688

約数和(自身を除く): 44103348

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 113, 180, 226, 339, 452, 565, 678, 1017, 1051, 1130, 1356, 1695, 2034, 2102, 2260, 3153, 3390, 4068, 4204, 5085, 5255, 6306, 6780, 9459, 10170, 10510, 12612, 15765, 18918, 20340, 21020, 31530, 37836, 47295, 63060, 94590, 118763, 189180, 237526, 356289, 475052, 593815, 712578, 1068867, 1187630, 1425156, 1781445, 2137734, 2375260, 3562890, 4275468, 5344335, 7125780, 10688670, 21377340]

約数ペア:

[(1, 21377340), (2, 10688670), (3, 7125780), (4, 5344335), (5, 4275468), (6, 3562890), (9, 2375260), (10, 2137734), (12, 1781445), (15, 1425156), (18, 1187630), (20, 1068867), (30, 712578), (36, 593815), (45, 475052), (60, 356289), (90, 237526), (113, 189180), (180, 118763), (226, 94590), (339, 63060), (452, 47295), (565, 37836), (678, 31530), (1017, 21020), (1051, 20340), (1130, 18918), (1356, 15765), (1695, 12612), (2034, 10510), (2102, 10170), (2260, 9459), (3153, 6780), (3390, 6306), (4068, 5255), (4204, 5085)]