20813976

素因数分解:

$2^3\times 3^3\times {\mathrm{173}}^1\times {\mathrm{557}}^1$

素因数の和:745

約数の個数: 64

約数和(自身を含む): 58255200

約数和(自身を除く): 37441224

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 173, 216, 346, 519, 557, 692, 1038, 1114, 1384, 1557, 1671, 2076, 2228, 3114, 3342, 4152, 4456, 4671, 5013, 6228, 6684, 9342, 10026, 12456, 13368, 15039, 18684, 20052, 30078, 37368, 40104, 60156, 96361, 120312, 192722, 289083, 385444, 578166, 770888, 867249, 1156332, 1734498, 2312664, 2601747, 3468996, 5203494, 6937992, 10406988, 20813976]

約数ペア:

[(1, 20813976), (2, 10406988), (3, 6937992), (4, 5203494), (6, 3468996), (8, 2601747), (9, 2312664), (12, 1734498), (18, 1156332), (24, 867249), (27, 770888), (36, 578166), (54, 385444), (72, 289083), (108, 192722), (173, 120312), (216, 96361), (346, 60156), (519, 40104), (557, 37368), (692, 30078), (1038, 20052), (1114, 18684), (1384, 15039), (1557, 13368), (1671, 12456), (2076, 10026), (2228, 9342), (3114, 6684), (3342, 6228), (4152, 5013), (4456, 4671)]