20542336

素因数分解:

$2^7\times {\mathrm{31}}^2\times {\mathrm{167}}^1$

素因数の和:243

約数の個数: 48

約数和(自身を含む): 42540120

約数和(自身を除く): 21997784

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 167, 248, 334, 496, 668, 961, 992, 1336, 1922, 1984, 2672, 3844, 3968, 5177, 5344, 7688, 10354, 10688, 15376, 20708, 21376, 30752, 41416, 61504, 82832, 123008, 160487, 165664, 320974, 331328, 641948, 662656, 1283896, 2567792, 5135584, 10271168, 20542336]

約数ペア:

[(1, 20542336), (2, 10271168), (4, 5135584), (8, 2567792), (16, 1283896), (31, 662656), (32, 641948), (62, 331328), (64, 320974), (124, 165664), (128, 160487), (167, 123008), (248, 82832), (334, 61504), (496, 41416), (668, 30752), (961, 21376), (992, 20708), (1336, 15376), (1922, 10688), (1984, 10354), (2672, 7688), (3844, 5344), (3968, 5177)]