21422336

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:227

約数の個数: 72

約数和(自身を含む): 47473944

約数和(自身を除く): 26051608

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 41, 52, 64, 82, 104, 128, 157, 164, 208, 256, 314, 328, 416, 533, 628, 656, 832, 1066, 1256, 1312, 1664, 2041, 2132, 2512, 2624, 3328, 4082, 4264, 5024, 5248, 6437, 8164, 8528, 10048, 10496, 12874, 16328, 17056, 20096, 25748, 32656, 34112, 40192, 51496, 65312, 68224, 83681, 102992, 130624, 136448, 167362, 205984, 261248, 334724, 411968, 522496, 669448, 823936, 1338896, 1647872, 2677792, 5355584, 10711168, 21422336]

約数ペア:

[(1, 21422336), (2, 10711168), (4, 5355584), (8, 2677792), (13, 1647872), (16, 1338896), (26, 823936), (32, 669448), (41, 522496), (52, 411968), (64, 334724), (82, 261248), (104, 205984), (128, 167362), (157, 136448), (164, 130624), (208, 102992), (256, 83681), (314, 68224), (328, 65312), (416, 51496), (533, 40192), (628, 34112), (656, 32656), (832, 25748), (1066, 20096), (1256, 17056), (1312, 16328), (1664, 12874), (2041, 10496), (2132, 10048), (2512, 8528), (2624, 8164), (3328, 6437), (4082, 5248), (4264, 5024)]