20935188

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{241}}^1$

素因数の和:397

約数の個数: 72

約数和(自身を含む): 56376320

約数和(自身を除く): 35441132

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 127, 171, 228, 241, 254, 342, 381, 482, 508, 684, 723, 762, 964, 1143, 1446, 1524, 2169, 2286, 2413, 2892, 4338, 4572, 4579, 4826, 7239, 8676, 9158, 9652, 13737, 14478, 18316, 21717, 27474, 28956, 30607, 41211, 43434, 54948, 61214, 82422, 86868, 91821, 122428, 164844, 183642, 275463, 367284, 550926, 581533, 1101852, 1163066, 1744599, 2326132, 3489198, 5233797, 6978396, 10467594, 20935188]

約数ペア:

[(1, 20935188), (2, 10467594), (3, 6978396), (4, 5233797), (6, 3489198), (9, 2326132), (12, 1744599), (18, 1163066), (19, 1101852), (36, 581533), (38, 550926), (57, 367284), (76, 275463), (114, 183642), (127, 164844), (171, 122428), (228, 91821), (241, 86868), (254, 82422), (342, 61214), (381, 54948), (482, 43434), (508, 41211), (684, 30607), (723, 28956), (762, 27474), (964, 21717), (1143, 18316), (1446, 14478), (1524, 13737), (2169, 9652), (2286, 9158), (2413, 8676), (2892, 7239), (4338, 4826), (4572, 4579)]