19965816

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{257}}^1$

素因数の和:365

約数の個数: 96

約数和(自身を含む): 59164560

約数和(自身を除く): 39198744

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 83, 104, 117, 156, 166, 234, 249, 257, 312, 332, 468, 498, 514, 664, 747, 771, 936, 996, 1028, 1079, 1494, 1542, 1992, 2056, 2158, 2313, 2988, 3084, 3237, 3341, 4316, 4626, 5976, 6168, 6474, 6682, 8632, 9252, 9711, 10023, 12948, 13364, 18504, 19422, 20046, 21331, 25896, 26728, 30069, 38844, 40092, 42662, 60138, 63993, 77688, 80184, 85324, 120276, 127986, 170648, 191979, 240552, 255972, 277303, 383958, 511944, 554606, 767916, 831909, 1109212, 1535832, 1663818, 2218424, 2495727, 3327636, 4991454, 6655272, 9982908, 19965816]

約数ペア:

[(1, 19965816), (2, 9982908), (3, 6655272), (4, 4991454), (6, 3327636), (8, 2495727), (9, 2218424), (12, 1663818), (13, 1535832), (18, 1109212), (24, 831909), (26, 767916), (36, 554606), (39, 511944), (52, 383958), (72, 277303), (78, 255972), (83, 240552), (104, 191979), (117, 170648), (156, 127986), (166, 120276), (234, 85324), (249, 80184), (257, 77688), (312, 63993), (332, 60138), (468, 42662), (498, 40092), (514, 38844), (664, 30069), (747, 26728), (771, 25896), (936, 21331), (996, 20046), (1028, 19422), (1079, 18504), (1494, 13364), (1542, 12948), (1992, 10023), (2056, 9711), (2158, 9252), (2313, 8632), (2988, 6682), (3084, 6474), (3237, 6168), (3341, 5976), (4316, 4626)]