20954492

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{167}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 42147840

約数和(自身を除く): 21193348

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 127, 167, 247, 254, 334, 494, 508, 668, 988, 1651, 2171, 2413, 3173, 3302, 4342, 4826, 6346, 6604, 8684, 9652, 12692, 21209, 31369, 41249, 42418, 62738, 82498, 84836, 125476, 164996, 275717, 402971, 551434, 805942, 1102868, 1611884, 5238623, 10477246, 20954492]

約数ペア:

[(1, 20954492), (2, 10477246), (4, 5238623), (13, 1611884), (19, 1102868), (26, 805942), (38, 551434), (52, 402971), (76, 275717), (127, 164996), (167, 125476), (247, 84836), (254, 82498), (334, 62738), (494, 42418), (508, 41249), (668, 31369), (988, 21209), (1651, 12692), (2171, 9652), (2413, 8684), (3173, 6604), (3302, 6346), (4342, 4826)]