263438721

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{227}}^1$

素因数の和:375

約数の個数: 72

約数和(自身を含む): 477322560

約数和(自身を除く): 213883839

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 109, 117, 169, 227, 273, 327, 507, 681, 763, 819, 981, 1183, 1417, 1521, 1589, 2043, 2289, 2951, 3549, 4251, 4767, 6867, 8853, 9919, 10647, 12753, 14301, 18421, 20657, 24743, 26559, 29757, 38363, 55263, 61971, 74229, 89271, 115089, 128947, 165789, 173201, 185913, 222687, 268541, 321659, 345267, 386841, 519603, 805623, 964977, 1160523, 1558809, 2251613, 2416869, 2894931, 4181567, 6754839, 12544701, 20264517, 29270969, 37634103, 87812907, 263438721]

約数ペア:

[(1, 263438721), (3, 87812907), (7, 37634103), (9, 29270969), (13, 20264517), (21, 12544701), (39, 6754839), (63, 4181567), (91, 2894931), (109, 2416869), (117, 2251613), (169, 1558809), (227, 1160523), (273, 964977), (327, 805623), (507, 519603), (681, 386841), (763, 345267), (819, 321659), (981, 268541), (1183, 222687), (1417, 185913), (1521, 173201), (1589, 165789), (2043, 128947), (2289, 115089), (2951, 89271), (3549, 74229), (4251, 61971), (4767, 55263), (6867, 38363), (8853, 29757), (9919, 26559), (10647, 24743), (12753, 20657), (14301, 18421)]