21801516

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:251

約数の個数: 96

約数和(自身を含む): 59609088

約数和(自身を除く): 37807572

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 23, 33, 43, 44, 46, 66, 69, 86, 92, 129, 132, 138, 167, 172, 253, 258, 276, 334, 473, 501, 506, 516, 668, 759, 946, 989, 1002, 1012, 1419, 1518, 1837, 1892, 1978, 2004, 2838, 2967, 3036, 3674, 3841, 3956, 5511, 5676, 5934, 7181, 7348, 7682, 10879, 11022, 11523, 11868, 14362, 15364, 21543, 21758, 22044, 23046, 28724, 32637, 42251, 43086, 43516, 46092, 65274, 78991, 84502, 86172, 126753, 130548, 157982, 165163, 169004, 236973, 253506, 315964, 330326, 473946, 495489, 507012, 660652, 947892, 990978, 1816793, 1981956, 3633586, 5450379, 7267172, 10900758, 21801516]

約数ペア:

[(1, 21801516), (2, 10900758), (3, 7267172), (4, 5450379), (6, 3633586), (11, 1981956), (12, 1816793), (22, 990978), (23, 947892), (33, 660652), (43, 507012), (44, 495489), (46, 473946), (66, 330326), (69, 315964), (86, 253506), (92, 236973), (129, 169004), (132, 165163), (138, 157982), (167, 130548), (172, 126753), (253, 86172), (258, 84502), (276, 78991), (334, 65274), (473, 46092), (501, 43516), (506, 43086), (516, 42251), (668, 32637), (759, 28724), (946, 23046), (989, 22044), (1002, 21758), (1012, 21543), (1419, 15364), (1518, 14362), (1837, 11868), (1892, 11523), (1978, 11022), (2004, 10879), (2838, 7682), (2967, 7348), (3036, 7181), (3674, 5934), (3841, 5676), (3956, 5511)]