21857070

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{2521}}^1$

素因数の和:2565

約数の個数: 48

約数和(自身を含む): 55746288

約数和(自身を除く): 33889218

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 255, 289, 510, 578, 867, 1445, 1734, 2521, 2890, 4335, 5042, 7563, 8670, 12605, 15126, 25210, 37815, 42857, 75630, 85714, 128571, 214285, 257142, 428570, 642855, 728569, 1285710, 1457138, 2185707, 3642845, 4371414, 7285690, 10928535, 21857070]

約数ペア:

[(1, 21857070), (2, 10928535), (3, 7285690), (5, 4371414), (6, 3642845), (10, 2185707), (15, 1457138), (17, 1285710), (30, 728569), (34, 642855), (51, 428570), (85, 257142), (102, 214285), (170, 128571), (255, 85714), (289, 75630), (510, 42857), (578, 37815), (867, 25210), (1445, 15126), (1734, 12605), (2521, 8670), (2890, 7563), (4335, 5042)]