20996688

素因数分解:

$2^4\times 3^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:244

約数の個数: 80

約数和(自身を含む): 56460672

約数和(自身を除く): 35463984

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 61, 71, 101, 122, 142, 183, 202, 213, 244, 284, 303, 366, 404, 426, 488, 568, 606, 732, 808, 852, 976, 1136, 1212, 1464, 1616, 1704, 2424, 2928, 3408, 4331, 4848, 6161, 7171, 8662, 12322, 12993, 14342, 17324, 18483, 21513, 24644, 25986, 28684, 34648, 36966, 43026, 49288, 51972, 57368, 69296, 73932, 86052, 98576, 103944, 114736, 147864, 172104, 207888, 295728, 344208, 437431, 874862, 1312293, 1749724, 2624586, 3499448, 5249172, 6998896, 10498344, 20996688]

約数ペア:

[(1, 20996688), (2, 10498344), (3, 6998896), (4, 5249172), (6, 3499448), (8, 2624586), (12, 1749724), (16, 1312293), (24, 874862), (48, 437431), (61, 344208), (71, 295728), (101, 207888), (122, 172104), (142, 147864), (183, 114736), (202, 103944), (213, 98576), (244, 86052), (284, 73932), (303, 69296), (366, 57368), (404, 51972), (426, 49288), (488, 43026), (568, 36966), (606, 34648), (732, 28684), (808, 25986), (852, 24644), (976, 21513), (1136, 18483), (1212, 17324), (1464, 14342), (1616, 12993), (1704, 12322), (2424, 8662), (2928, 7171), (3408, 6161), (4331, 4848)]