21471330

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{271}}^1$

素因数の和:439

約数の個数: 64

約数和(自身を含む): 54835200

約数和(自身を除く): 33363870

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 139, 190, 271, 278, 285, 417, 542, 570, 695, 813, 834, 1355, 1390, 1626, 2085, 2641, 2710, 4065, 4170, 5149, 5282, 7923, 8130, 10298, 13205, 15447, 15846, 25745, 26410, 30894, 37669, 39615, 51490, 75338, 77235, 79230, 113007, 154470, 188345, 226014, 376690, 565035, 715711, 1130070, 1431422, 2147133, 3578555, 4294266, 7157110, 10735665, 21471330]

約数ペア:

[(1, 21471330), (2, 10735665), (3, 7157110), (5, 4294266), (6, 3578555), (10, 2147133), (15, 1431422), (19, 1130070), (30, 715711), (38, 565035), (57, 376690), (95, 226014), (114, 188345), (139, 154470), (190, 113007), (271, 79230), (278, 77235), (285, 75338), (417, 51490), (542, 39615), (570, 37669), (695, 30894), (813, 26410), (834, 25745), (1355, 15846), (1390, 15447), (1626, 13205), (2085, 10298), (2641, 8130), (2710, 7923), (4065, 5282), (4170, 5149)]