21030890253

素因数分解:

$3^1\times {\mathrm{43}}^2\times {\mathrm{59}}^1\times {\mathrm{179}}^1\times {\mathrm{359}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 29439936000

約数和(自身を除く): 8409045747

約数列:

[1, 3, 43, 59, 129, 177, 179, 359, 537, 1077, 1849, 2537, 5547, 7611, 7697, 10561, 15437, 21181, 23091, 31683, 46311, 63543, 64261, 109091, 192783, 327273, 330971, 454123, 663791, 910783, 992913, 1362369, 1991373, 2732349, 2763223, 3791399, 8289669, 11374197, 19527289, 39163669, 58581867, 117491007, 118818589, 163030157, 356455767, 489090471, 7010296751, 21030890253]

約数ペア:

[(1, 21030890253), (3, 7010296751), (43, 489090471), (59, 356455767), (129, 163030157), (177, 118818589), (179, 117491007), (359, 58581867), (537, 39163669), (1077, 19527289), (1849, 11374197), (2537, 8289669), (5547, 3791399), (7611, 2763223), (7697, 2732349), (10561, 1991373), (15437, 1362369), (21181, 992913), (23091, 910783), (31683, 663791), (46311, 454123), (63543, 330971), (64261, 327273), (109091, 192783)]