21999384

素因数分解:

$2^3\times 3^3\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1$

素因数の和:270

約数の個数: 128

約数和(自身を含む): 68428800

約数和(自身を除く): 46429416

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 27, 33, 36, 44, 47, 54, 66, 72, 88, 94, 99, 108, 132, 141, 188, 197, 198, 216, 264, 282, 297, 376, 394, 396, 423, 517, 564, 591, 594, 788, 792, 846, 1034, 1128, 1182, 1188, 1269, 1551, 1576, 1692, 1773, 2068, 2167, 2364, 2376, 2538, 3102, 3384, 3546, 4136, 4334, 4653, 4728, 5076, 5319, 6204, 6501, 7092, 8668, 9259, 9306, 10152, 10638, 12408, 13002, 13959, 14184, 17336, 18518, 18612, 19503, 21276, 26004, 27777, 27918, 37036, 37224, 39006, 42552, 52008, 55554, 55836, 58509, 74072, 78012, 83331, 101849, 111108, 111672, 117018, 156024, 166662, 203698, 222216, 234036, 249993, 305547, 333324, 407396, 468072, 499986, 611094, 666648, 814792, 916641, 999972, 1222188, 1833282, 1999944, 2444376, 2749923, 3666564, 5499846, 7333128, 10999692, 21999384]

約数ペア:

[(1, 21999384), (2, 10999692), (3, 7333128), (4, 5499846), (6, 3666564), (8, 2749923), (9, 2444376), (11, 1999944), (12, 1833282), (18, 1222188), (22, 999972), (24, 916641), (27, 814792), (33, 666648), (36, 611094), (44, 499986), (47, 468072), (54, 407396), (66, 333324), (72, 305547), (88, 249993), (94, 234036), (99, 222216), (108, 203698), (132, 166662), (141, 156024), (188, 117018), (197, 111672), (198, 111108), (216, 101849), (264, 83331), (282, 78012), (297, 74072), (376, 58509), (394, 55836), (396, 55554), (423, 52008), (517, 42552), (564, 39006), (591, 37224), (594, 37036), (788, 27918), (792, 27777), (846, 26004), (1034, 21276), (1128, 19503), (1182, 18612), (1188, 18518), (1269, 17336), (1551, 14184), (1576, 13959), (1692, 13002), (1773, 12408), (2068, 10638), (2167, 10152), (2364, 9306), (2376, 9259), (2538, 8668), (3102, 7092), (3384, 6501), (3546, 6204), (4136, 5319), (4334, 5076), (4653, 4728)]