20848168

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{337}}^1$

素因数の和:410

約数の個数: 64

約数和(自身を含む): 46238400

約数和(自身を除く): 25390232

約数列:

[1, 2, 4, 8, 11, 19, 22, 37, 38, 44, 74, 76, 88, 148, 152, 209, 296, 337, 407, 418, 674, 703, 814, 836, 1348, 1406, 1628, 1672, 2696, 2812, 3256, 3707, 5624, 6403, 7414, 7733, 12469, 12806, 14828, 15466, 24938, 25612, 29656, 30932, 49876, 51224, 61864, 70433, 99752, 137159, 140866, 236911, 274318, 281732, 473822, 548636, 563464, 947644, 1097272, 1895288, 2606021, 5212042, 10424084, 20848168]

約数ペア:

[(1, 20848168), (2, 10424084), (4, 5212042), (8, 2606021), (11, 1895288), (19, 1097272), (22, 947644), (37, 563464), (38, 548636), (44, 473822), (74, 281732), (76, 274318), (88, 236911), (148, 140866), (152, 137159), (209, 99752), (296, 70433), (337, 61864), (407, 51224), (418, 49876), (674, 30932), (703, 29656), (814, 25612), (836, 24938), (1348, 15466), (1406, 14828), (1628, 12806), (1672, 12469), (2696, 7733), (2812, 7414), (3256, 6403), (3707, 5624)]