211789396

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^2$

素因数の和:329

約数の個数: 72

約数和(自身を含む): 474338816

約数和(自身を除く): 262549420

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 52, 62, 91, 124, 137, 182, 217, 274, 364, 403, 434, 548, 806, 868, 959, 1612, 1781, 1918, 2821, 3562, 3836, 4247, 5642, 7124, 8494, 11284, 12467, 16988, 18769, 24934, 29729, 37538, 49868, 55211, 59458, 75076, 110422, 118916, 131383, 220844, 243997, 262766, 386477, 487994, 525532, 581839, 772954, 975988, 1163678, 1545908, 1707979, 2327356, 3415958, 4072873, 6831916, 7563907, 8145746, 15127814, 16291492, 30255628, 52947349, 105894698, 211789396]

約数ペア:

[(1, 211789396), (2, 105894698), (4, 52947349), (7, 30255628), (13, 16291492), (14, 15127814), (26, 8145746), (28, 7563907), (31, 6831916), (52, 4072873), (62, 3415958), (91, 2327356), (124, 1707979), (137, 1545908), (182, 1163678), (217, 975988), (274, 772954), (364, 581839), (403, 525532), (434, 487994), (548, 386477), (806, 262766), (868, 243997), (959, 220844), (1612, 131383), (1781, 118916), (1918, 110422), (2821, 75076), (3562, 59458), (3836, 55211), (4247, 49868), (5642, 37538), (7124, 29729), (8494, 24934), (11284, 18769), (12467, 16988)]