20931196

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:131

約数の個数: 96

約数和(自身を含む): 47190528

約数和(自身を除く): 26259332

約数列:

[1, 2, 4, 11, 13, 22, 23, 26, 37, 43, 44, 46, 52, 74, 86, 92, 143, 148, 172, 253, 286, 299, 407, 473, 481, 506, 559, 572, 598, 814, 851, 946, 962, 989, 1012, 1118, 1196, 1591, 1628, 1702, 1892, 1924, 1978, 2236, 3182, 3289, 3404, 3956, 5291, 6149, 6364, 6578, 9361, 10582, 10879, 11063, 12298, 12857, 13156, 17501, 18722, 20683, 21164, 21758, 22126, 24596, 25714, 35002, 36593, 37444, 41366, 43516, 44252, 51428, 70004, 73186, 82732, 121693, 141427, 146372, 227513, 243386, 282854, 402523, 455026, 475709, 486772, 565708, 805046, 910052, 951418, 1610092, 1902836, 5232799, 10465598, 20931196]

約数ペア:

[(1, 20931196), (2, 10465598), (4, 5232799), (11, 1902836), (13, 1610092), (22, 951418), (23, 910052), (26, 805046), (37, 565708), (43, 486772), (44, 475709), (46, 455026), (52, 402523), (74, 282854), (86, 243386), (92, 227513), (143, 146372), (148, 141427), (172, 121693), (253, 82732), (286, 73186), (299, 70004), (407, 51428), (473, 44252), (481, 43516), (506, 41366), (559, 37444), (572, 36593), (598, 35002), (814, 25714), (851, 24596), (946, 22126), (962, 21758), (989, 21164), (1012, 20683), (1118, 18722), (1196, 17501), (1591, 13156), (1628, 12857), (1702, 12298), (1892, 11063), (1924, 10879), (1978, 10582), (2236, 9361), (3182, 6578), (3289, 6364), (3404, 6149), (3956, 5291)]