21599340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{51427}}^1$

素因数の和:51446

約数の個数: 48

約数和(自身を含む): 69119232

約数和(自身を除く): 47519892

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, 51427, 102854, 154281, 205708, 257135, 308562, 359989, 514270, 617124, 719978, 771405, 1028540, 1079967, 1439956, 1542810, 1799945, 2159934, 3085620, 3599890, 4319868, 5399835, 7199780, 10799670, 21599340]

約数ペア:

[(1, 21599340), (2, 10799670), (3, 7199780), (4, 5399835), (5, 4319868), (6, 3599890), (7, 3085620), (10, 2159934), (12, 1799945), (14, 1542810), (15, 1439956), (20, 1079967), (21, 1028540), (28, 771405), (30, 719978), (35, 617124), (42, 514270), (60, 359989), (70, 308562), (84, 257135), (105, 205708), (140, 154281), (210, 102854), (420, 51427)]