18909036

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{557}}^1$

素因数の和:631

約数の個数: 72

約数和(自身を含む): 51184224

約数和(自身を除く): 32275188

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 41, 46, 69, 82, 92, 123, 138, 164, 207, 246, 276, 369, 414, 492, 557, 738, 828, 943, 1114, 1476, 1671, 1886, 2228, 2829, 3342, 3772, 5013, 5658, 6684, 8487, 10026, 11316, 12811, 16974, 20052, 22837, 25622, 33948, 38433, 45674, 51244, 68511, 76866, 91348, 115299, 137022, 153732, 205533, 230598, 274044, 411066, 461196, 525251, 822132, 1050502, 1575753, 2101004, 3151506, 4727259, 6303012, 9454518, 18909036]

約数ペア:

[(1, 18909036), (2, 9454518), (3, 6303012), (4, 4727259), (6, 3151506), (9, 2101004), (12, 1575753), (18, 1050502), (23, 822132), (36, 525251), (41, 461196), (46, 411066), (69, 274044), (82, 230598), (92, 205533), (123, 153732), (138, 137022), (164, 115299), (207, 91348), (246, 76866), (276, 68511), (369, 51244), (414, 45674), (492, 38433), (557, 33948), (738, 25622), (828, 22837), (943, 20052), (1114, 16974), (1476, 12811), (1671, 11316), (1886, 10026), (2228, 8487), (2829, 6684), (3342, 5658), (3772, 5013)]