20120331

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{541}}^1$

素因数の和:592

約数の個数: 48

約数和(自身を含む): 35589888

約数和(自身を除く): 15469557

約数列:

[1, 3, 7, 11, 21, 23, 33, 49, 69, 77, 147, 161, 231, 253, 483, 539, 541, 759, 1127, 1617, 1623, 1771, 3381, 3787, 5313, 5951, 11361, 12397, 12443, 17853, 26509, 37191, 37329, 41657, 79527, 87101, 124971, 136873, 261303, 291599, 410619, 609707, 874797, 958111, 1829121, 2874333, 6706777, 20120331]

約数ペア:

[(1, 20120331), (3, 6706777), (7, 2874333), (11, 1829121), (21, 958111), (23, 874797), (33, 609707), (49, 410619), (69, 291599), (77, 261303), (147, 136873), (161, 124971), (231, 87101), (253, 79527), (483, 41657), (539, 37329), (541, 37191), (759, 26509), (1127, 17853), (1617, 12443), (1623, 12397), (1771, 11361), (3381, 5951), (3787, 5313)]