19895862

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:146

約数の個数: 96

約数和(自身を含む): 49904640

約数和(自身を除く): 30008778

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 37, 42, 49, 59, 62, 74, 93, 98, 111, 118, 147, 177, 186, 217, 222, 259, 294, 354, 413, 434, 518, 651, 777, 826, 1147, 1239, 1302, 1519, 1554, 1813, 1829, 2183, 2294, 2478, 2891, 3038, 3441, 3626, 3658, 4366, 4557, 5439, 5487, 5782, 6549, 6882, 8029, 8673, 9114, 10878, 10974, 12803, 13098, 15281, 16058, 17346, 24087, 25606, 30562, 38409, 45843, 48174, 56203, 67673, 76818, 89621, 91686, 106967, 112406, 135346, 168609, 179242, 203019, 213934, 268863, 320901, 337218, 406038, 473711, 537726, 641802, 947422, 1421133, 2842266, 3315977, 6631954, 9947931, 19895862]

約数ペア:

[(1, 19895862), (2, 9947931), (3, 6631954), (6, 3315977), (7, 2842266), (14, 1421133), (21, 947422), (31, 641802), (37, 537726), (42, 473711), (49, 406038), (59, 337218), (62, 320901), (74, 268863), (93, 213934), (98, 203019), (111, 179242), (118, 168609), (147, 135346), (177, 112406), (186, 106967), (217, 91686), (222, 89621), (259, 76818), (294, 67673), (354, 56203), (413, 48174), (434, 45843), (518, 38409), (651, 30562), (777, 25606), (826, 24087), (1147, 17346), (1239, 16058), (1302, 15281), (1519, 13098), (1554, 12803), (1813, 10974), (1829, 10878), (2183, 9114), (2294, 8673), (2478, 8029), (2891, 6882), (3038, 6549), (3441, 5782), (3626, 5487), (3658, 5439), (4366, 4557)]