20305278

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{5557}}^1$

素因数の和:5601

約数の個数: 48

約数和(自身を含む): 52022880

約数和(自身を除く): 31717602

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 29, 42, 58, 63, 87, 126, 174, 203, 261, 406, 522, 609, 1218, 1827, 3654, 5557, 11114, 16671, 33342, 38899, 50013, 77798, 100026, 116697, 161153, 233394, 322306, 350091, 483459, 700182, 966918, 1128071, 1450377, 2256142, 2900754, 3384213, 6768426, 10152639, 20305278]

約数ペア:

[(1, 20305278), (2, 10152639), (3, 6768426), (6, 3384213), (7, 2900754), (9, 2256142), (14, 1450377), (18, 1128071), (21, 966918), (29, 700182), (42, 483459), (58, 350091), (63, 322306), (87, 233394), (126, 161153), (174, 116697), (203, 100026), (261, 77798), (406, 50013), (522, 38899), (609, 33342), (1218, 16671), (1827, 11114), (3654, 5557)]