18521504

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{743}}^1$

素因数の和:813

約数の個数: 48

約数和(自身を含む): 39372480

約数和(自身を除く): 20850976

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 41, 76, 82, 152, 164, 304, 328, 608, 656, 743, 779, 1312, 1486, 1558, 2972, 3116, 5944, 6232, 11888, 12464, 14117, 23776, 24928, 28234, 30463, 56468, 60926, 112936, 121852, 225872, 243704, 451744, 487408, 578797, 974816, 1157594, 2315188, 4630376, 9260752, 18521504]

約数ペア:

[(1, 18521504), (2, 9260752), (4, 4630376), (8, 2315188), (16, 1157594), (19, 974816), (32, 578797), (38, 487408), (41, 451744), (76, 243704), (82, 225872), (152, 121852), (164, 112936), (304, 60926), (328, 56468), (608, 30463), (656, 28234), (743, 24928), (779, 23776), (1312, 14117), (1486, 12464), (1558, 11888), (2972, 6232), (3116, 5944)]