18013653

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 31824000

約数和(自身を除く): 13810347

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 101, 133, 149, 171, 303, 399, 447, 707, 909, 1043, 1197, 1341, 1919, 2121, 2831, 3129, 5757, 6363, 8493, 9387, 13433, 15049, 17271, 19817, 25479, 40299, 45147, 59451, 105343, 120897, 135441, 178353, 285931, 316029, 857793, 948087, 2001517, 2573379, 6004551, 18013653]

約数ペア:

[(1, 18013653), (3, 6004551), (7, 2573379), (9, 2001517), (19, 948087), (21, 857793), (57, 316029), (63, 285931), (101, 178353), (133, 135441), (149, 120897), (171, 105343), (303, 59451), (399, 45147), (447, 40299), (707, 25479), (909, 19817), (1043, 17271), (1197, 15049), (1341, 13433), (1919, 9387), (2121, 8493), (2831, 6363), (3129, 5757)]