21568365

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{229}}^1$

素因数の和:283

約数の個数: 96

約数和(自身を含む): 48222720

約数和(自身を除く): 26654355

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 23, 35, 39, 45, 63, 65, 69, 91, 105, 115, 117, 161, 195, 207, 229, 273, 299, 315, 345, 455, 483, 585, 687, 805, 819, 897, 1035, 1145, 1365, 1449, 1495, 1603, 2061, 2093, 2415, 2691, 2977, 3435, 4095, 4485, 4809, 5267, 6279, 7245, 8015, 8931, 10305, 10465, 13455, 14427, 14885, 15801, 18837, 20839, 24045, 26335, 26793, 31395, 36869, 44655, 47403, 62517, 68471, 72135, 79005, 94185, 104195, 110607, 133965, 184345, 187551, 205413, 237015, 312585, 331821, 342355, 479297, 553035, 616239, 937755, 1027065, 1437891, 1659105, 2396485, 3081195, 4313673, 7189455, 21568365]

約数ペア:

[(1, 21568365), (3, 7189455), (5, 4313673), (7, 3081195), (9, 2396485), (13, 1659105), (15, 1437891), (21, 1027065), (23, 937755), (35, 616239), (39, 553035), (45, 479297), (63, 342355), (65, 331821), (69, 312585), (91, 237015), (105, 205413), (115, 187551), (117, 184345), (161, 133965), (195, 110607), (207, 104195), (229, 94185), (273, 79005), (299, 72135), (315, 68471), (345, 62517), (455, 47403), (483, 44655), (585, 36869), (687, 31395), (805, 26793), (819, 26335), (897, 24045), (1035, 20839), (1145, 18837), (1365, 15801), (1449, 14885), (1495, 14427), (1603, 13455), (2061, 10465), (2093, 10305), (2415, 8931), (2691, 8015), (2977, 7245), (3435, 6279), (4095, 5267), (4485, 4809)]