19747140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47017}}^1$

素因数の和:47036

約数の個数: 48

約数和(自身を含む): 63192192

約数和(自身を除く): 43445052

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 47017, 94034, 141051, 188068, 235085, 282102, 329119, 470170, 564204, 658238, 705255, 940340, 987357, 1316476, 1410510, 1645595, 1974714, 2821020, 3291190, 3949428, 4936785, 6582380, 9873570, 19747140]

約数ペア:

[(1, 19747140), (2, 9873570), (3, 6582380), (4, 4936785), (5, 3949428), (6, 3291190), (7, 2821020), (10, 1974714), (12, 1645595), (14, 1410510), (15, 1316476), (20, 987357), (21, 940340), (28, 705255), (30, 658238), (35, 564204), (42, 470170), (60, 329119), (70, 282102), (84, 235085), (105, 188068), (140, 141051), (210, 94034), (420, 47017)]