188909721

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{1613}}^1$

素因数の和:1663

約数の個数: 72

約数和(自身を含む): 368611776

約数和(自身を除く): 179702055

約数列:

[1, 3, 7, 9, 11, 13, 21, 33, 39, 63, 77, 91, 99, 117, 143, 169, 231, 273, 429, 507, 693, 819, 1001, 1183, 1287, 1521, 1613, 1859, 3003, 3549, 4839, 5577, 9009, 10647, 11291, 13013, 14517, 16731, 17743, 20969, 33873, 39039, 53229, 62907, 101619, 117117, 124201, 146783, 159687, 188721, 230659, 272597, 372603, 440349, 691977, 817791, 1117809, 1321047, 1614613, 1908179, 2075931, 2453373, 2998567, 4843839, 5724537, 8995701, 14531517, 17173611, 20989969, 26987103, 62969907, 188909721]

約数ペア:

[(1, 188909721), (3, 62969907), (7, 26987103), (9, 20989969), (11, 17173611), (13, 14531517), (21, 8995701), (33, 5724537), (39, 4843839), (63, 2998567), (77, 2453373), (91, 2075931), (99, 1908179), (117, 1614613), (143, 1321047), (169, 1117809), (231, 817791), (273, 691977), (429, 440349), (507, 372603), (693, 272597), (819, 230659), (1001, 188721), (1183, 159687), (1287, 146783), (1521, 124201), (1613, 117117), (1859, 101619), (3003, 62907), (3549, 53229), (4839, 39039), (5577, 33873), (9009, 20969), (10647, 17743), (11291, 16731), (13013, 14517)]