21271830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{557}}^1$

素因数の和:653

約数の個数: 64

約数和(自身を含む): 54639360

約数和(自身を除く): 33367530

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 67, 95, 114, 134, 190, 201, 285, 335, 402, 557, 570, 670, 1005, 1114, 1273, 1671, 2010, 2546, 2785, 3342, 3819, 5570, 6365, 7638, 8355, 10583, 12730, 16710, 19095, 21166, 31749, 37319, 38190, 52915, 63498, 74638, 105830, 111957, 158745, 186595, 223914, 317490, 373190, 559785, 709061, 1119570, 1418122, 2127183, 3545305, 4254366, 7090610, 10635915, 21271830]

約数ペア:

[(1, 21271830), (2, 10635915), (3, 7090610), (5, 4254366), (6, 3545305), (10, 2127183), (15, 1418122), (19, 1119570), (30, 709061), (38, 559785), (57, 373190), (67, 317490), (95, 223914), (114, 186595), (134, 158745), (190, 111957), (201, 105830), (285, 74638), (335, 63498), (402, 52915), (557, 38190), (570, 37319), (670, 31749), (1005, 21166), (1114, 19095), (1273, 16710), (1671, 12730), (2010, 10583), (2546, 8355), (2785, 7638), (3342, 6365), (3819, 5570)]