20558228

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{619}}^1$

素因数の和:684

約数の個数: 36

約数和(自身を含む): 39684960

約数和(自身を除く): 19126732

約数列:

[1, 2, 4, 19, 23, 38, 46, 76, 92, 361, 437, 619, 722, 874, 1238, 1444, 1748, 2476, 8303, 11761, 14237, 16606, 23522, 28474, 33212, 47044, 56948, 223459, 270503, 446918, 541006, 893836, 1082012, 5139557, 10279114, 20558228]

約数ペア:

[(1, 20558228), (2, 10279114), (4, 5139557), (19, 1082012), (23, 893836), (38, 541006), (46, 446918), (76, 270503), (92, 223459), (361, 56948), (437, 47044), (619, 33212), (722, 28474), (874, 23522), (1238, 16606), (1444, 14237), (1748, 11761), (2476, 8303)]