21437340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21017}}^1$

素因数の和:21046

約数の個数: 48

約数和(自身を含む): 63558432

約数和(自身を除く): 42121092

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 21017, 42034, 63051, 84068, 105085, 126102, 210170, 252204, 315255, 357289, 420340, 630510, 714578, 1071867, 1261020, 1429156, 1786445, 2143734, 3572890, 4287468, 5359335, 7145780, 10718670, 21437340]

約数ペア:

[(1, 21437340), (2, 10718670), (3, 7145780), (4, 5359335), (5, 4287468), (6, 3572890), (10, 2143734), (12, 1786445), (15, 1429156), (17, 1261020), (20, 1071867), (30, 714578), (34, 630510), (51, 420340), (60, 357289), (68, 315255), (85, 252204), (102, 210170), (170, 126102), (204, 105085), (255, 84068), (340, 63051), (510, 42034), (1020, 21017)]