21212256

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{739}}^1$

素因数の和:788

約数の個数: 96

約数和(自身を含む): 62657280

約数和(自身を除く): 41445024

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 23, 24, 26, 32, 39, 46, 48, 52, 69, 78, 92, 96, 104, 138, 156, 184, 208, 276, 299, 312, 368, 416, 552, 598, 624, 736, 739, 897, 1104, 1196, 1248, 1478, 1794, 2208, 2217, 2392, 2956, 3588, 4434, 4784, 5912, 7176, 8868, 9568, 9607, 11824, 14352, 16997, 17736, 19214, 23648, 28704, 28821, 33994, 35472, 38428, 50991, 57642, 67988, 70944, 76856, 101982, 115284, 135976, 153712, 203964, 220961, 230568, 271952, 307424, 407928, 441922, 461136, 543904, 662883, 815856, 883844, 922272, 1325766, 1631712, 1767688, 2651532, 3535376, 5303064, 7070752, 10606128, 21212256]

約数ペア:

[(1, 21212256), (2, 10606128), (3, 7070752), (4, 5303064), (6, 3535376), (8, 2651532), (12, 1767688), (13, 1631712), (16, 1325766), (23, 922272), (24, 883844), (26, 815856), (32, 662883), (39, 543904), (46, 461136), (48, 441922), (52, 407928), (69, 307424), (78, 271952), (92, 230568), (96, 220961), (104, 203964), (138, 153712), (156, 135976), (184, 115284), (208, 101982), (276, 76856), (299, 70944), (312, 67988), (368, 57642), (416, 50991), (552, 38428), (598, 35472), (624, 33994), (736, 28821), (739, 28704), (897, 23648), (1104, 19214), (1196, 17736), (1248, 16997), (1478, 14352), (1794, 11824), (2208, 9607), (2217, 9568), (2392, 8868), (2956, 7176), (3588, 5912), (4434, 4784)]