21043764

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{739}}^1$

素因数の和:869

約数の個数: 72

約数和(自身を含む): 61414080

約数和(自身を除く): 40370316

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 113, 126, 226, 252, 339, 452, 678, 739, 791, 1017, 1356, 1478, 1582, 2034, 2217, 2373, 2956, 3164, 4068, 4434, 4746, 5173, 6651, 7119, 8868, 9492, 10346, 13302, 14238, 15519, 20692, 26604, 28476, 31038, 46557, 62076, 83507, 93114, 167014, 186228, 250521, 334028, 501042, 584549, 751563, 1002084, 1169098, 1503126, 1753647, 2338196, 3006252, 3507294, 5260941, 7014588, 10521882, 21043764]

約数ペア:

[(1, 21043764), (2, 10521882), (3, 7014588), (4, 5260941), (6, 3507294), (7, 3006252), (9, 2338196), (12, 1753647), (14, 1503126), (18, 1169098), (21, 1002084), (28, 751563), (36, 584549), (42, 501042), (63, 334028), (84, 250521), (113, 186228), (126, 167014), (226, 93114), (252, 83507), (339, 62076), (452, 46557), (678, 31038), (739, 28476), (791, 26604), (1017, 20692), (1356, 15519), (1478, 14238), (1582, 13302), (2034, 10346), (2217, 9492), (2373, 8868), (2956, 7119), (3164, 6651), (4068, 5173), (4434, 4746)]