20942892

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1$

素因数の和:299

約数の個数: 72

約数和(自身を含む): 55159104

約数和(自身を除く): 34216212

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 83, 86, 129, 163, 166, 172, 249, 258, 326, 332, 387, 489, 498, 516, 652, 747, 774, 978, 996, 1467, 1494, 1548, 1956, 2934, 2988, 3569, 5868, 7009, 7138, 10707, 13529, 14018, 14276, 21027, 21414, 27058, 28036, 32121, 40587, 42054, 42828, 54116, 63081, 64242, 81174, 84108, 121761, 126162, 128484, 162348, 243522, 252324, 487044, 581747, 1163494, 1745241, 2326988, 3490482, 5235723, 6980964, 10471446, 20942892]

約数ペア:

[(1, 20942892), (2, 10471446), (3, 6980964), (4, 5235723), (6, 3490482), (9, 2326988), (12, 1745241), (18, 1163494), (36, 581747), (43, 487044), (83, 252324), (86, 243522), (129, 162348), (163, 128484), (166, 126162), (172, 121761), (249, 84108), (258, 81174), (326, 64242), (332, 63081), (387, 54116), (489, 42828), (498, 42054), (516, 40587), (652, 32121), (747, 28036), (774, 27058), (978, 21414), (996, 21027), (1467, 14276), (1494, 14018), (1548, 13529), (1956, 10707), (2934, 7138), (2988, 7009), (3569, 5868)]