20957836

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1$

素因数の和:346

約数の個数: 48

約数和(自身を含む): 41176800

約数和(自身を除く): 20218964

約数列:

[1, 2, 4, 19, 29, 37, 38, 58, 74, 76, 116, 148, 257, 514, 551, 703, 1028, 1073, 1102, 1406, 2146, 2204, 2812, 4292, 4883, 7453, 9509, 9766, 14906, 19018, 19532, 20387, 29812, 38036, 40774, 81548, 141607, 180671, 275761, 283214, 361342, 551522, 566428, 722684, 1103044, 5239459, 10478918, 20957836]

約数ペア:

[(1, 20957836), (2, 10478918), (4, 5239459), (19, 1103044), (29, 722684), (37, 566428), (38, 551522), (58, 361342), (74, 283214), (76, 275761), (116, 180671), (148, 141607), (257, 81548), (514, 40774), (551, 38036), (703, 29812), (1028, 20387), (1073, 19532), (1102, 19018), (1406, 14906), (2146, 9766), (2204, 9509), (2812, 7453), (4292, 4883)]