21167972384

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{349}}^1\times {\mathrm{691}}^1$

素因数の和:1274

約数の個数: 96

約数和(自身を含む): 45287524800

約数和(自身を除く): 24119552416

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 211, 349, 416, 422, 691, 698, 844, 1382, 1396, 1688, 2743, 2764, 2792, 3376, 4537, 5486, 5528, 5584, 6752, 8983, 9074, 10972, 11056, 11168, 17966, 18148, 21944, 22112, 35932, 36296, 43888, 71864, 72592, 73639, 87776, 143728, 145184, 145801, 147278, 241159, 287456, 291602, 294556, 482318, 583204, 589112, 957307, 964636, 1166408, 1178224, 1895413, 1914614, 1929272, 2332816, 2356448, 3135067, 3790826, 3829228, 3858544, 4665632, 6270134, 7581652, 7658456, 7717088, 12540268, 15163304, 15316912, 25080536, 30326608, 30633824, 50161072, 50884549, 60653216, 100322144, 101769098, 203538196, 407076392, 661499137, 814152784, 1322998274, 1628305568, 2645996548, 5291993096, 10583986192, 21167972384]

約数ペア:

[(1, 21167972384), (2, 10583986192), (4, 5291993096), (8, 2645996548), (13, 1628305568), (16, 1322998274), (26, 814152784), (32, 661499137), (52, 407076392), (104, 203538196), (208, 101769098), (211, 100322144), (349, 60653216), (416, 50884549), (422, 50161072), (691, 30633824), (698, 30326608), (844, 25080536), (1382, 15316912), (1396, 15163304), (1688, 12540268), (2743, 7717088), (2764, 7658456), (2792, 7581652), (3376, 6270134), (4537, 4665632), (5486, 3858544), (5528, 3829228), (5584, 3790826), (6752, 3135067), (8983, 2356448), (9074, 2332816), (10972, 1929272), (11056, 1914614), (11168, 1895413), (17966, 1178224), (18148, 1166408), (21944, 964636), (22112, 957307), (35932, 589112), (36296, 583204), (43888, 482318), (71864, 294556), (72592, 291602), (73639, 287456), (87776, 241159), (143728, 147278), (145184, 145801)]