21595980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{51419}}^1$

素因数の和:51438

約数の個数: 48

約数和(自身を含む): 69108480

約数和(自身を除く): 47512500

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, 51419, 102838, 154257, 205676, 257095, 308514, 359933, 514190, 617028, 719866, 771285, 1028380, 1079799, 1439732, 1542570, 1799665, 2159598, 3085140, 3599330, 4319196, 5398995, 7198660, 10797990, 21595980]

約数ペア:

[(1, 21595980), (2, 10797990), (3, 7198660), (4, 5398995), (5, 4319196), (6, 3599330), (7, 3085140), (10, 2159598), (12, 1799665), (14, 1542570), (15, 1439732), (20, 1079799), (21, 1028380), (28, 771285), (30, 719866), (35, 617028), (42, 514190), (60, 359933), (70, 308514), (84, 257095), (105, 205676), (140, 154257), (210, 102838), (420, 51419)]