21755118

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{31}}^2$

素因数の和:99

約数の個数: 96

約数和(自身を含む): 57196800

約数和(自身を除く): 35441682

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 31, 33, 42, 49, 62, 66, 77, 93, 98, 147, 154, 186, 217, 231, 294, 341, 343, 434, 462, 539, 651, 682, 686, 961, 1023, 1029, 1078, 1302, 1519, 1617, 1922, 2046, 2058, 2387, 2883, 3038, 3234, 3773, 4557, 4774, 5766, 6727, 7161, 7546, 9114, 10571, 10633, 11319, 13454, 14322, 16709, 20181, 21142, 21266, 22638, 31713, 31899, 33418, 40362, 47089, 50127, 63426, 63798, 73997, 94178, 100254, 116963, 141267, 147994, 221991, 233926, 282534, 329623, 350889, 443982, 517979, 659246, 701778, 988869, 1035958, 1553937, 1977738, 3107874, 3625853, 7251706, 10877559, 21755118]

約数ペア:

[(1, 21755118), (2, 10877559), (3, 7251706), (6, 3625853), (7, 3107874), (11, 1977738), (14, 1553937), (21, 1035958), (22, 988869), (31, 701778), (33, 659246), (42, 517979), (49, 443982), (62, 350889), (66, 329623), (77, 282534), (93, 233926), (98, 221991), (147, 147994), (154, 141267), (186, 116963), (217, 100254), (231, 94178), (294, 73997), (341, 63798), (343, 63426), (434, 50127), (462, 47089), (539, 40362), (651, 33418), (682, 31899), (686, 31713), (961, 22638), (1023, 21266), (1029, 21142), (1078, 20181), (1302, 16709), (1519, 14322), (1617, 13454), (1922, 11319), (2046, 10633), (2058, 10571), (2387, 9114), (2883, 7546), (3038, 7161), (3234, 6727), (3773, 5766), (4557, 4774)]