2891988

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:197

約数の個数: 72

約数和(自身を含む): 8168160

約数和(自身を除く): 5276172

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 67, 99, 109, 132, 134, 198, 201, 218, 268, 327, 396, 402, 436, 603, 654, 737, 804, 981, 1199, 1206, 1308, 1474, 1962, 2211, 2398, 2412, 2948, 3597, 3924, 4422, 4796, 6633, 7194, 7303, 8844, 10791, 13266, 14388, 14606, 21582, 21909, 26532, 29212, 43164, 43818, 65727, 80333, 87636, 131454, 160666, 240999, 262908, 321332, 481998, 722997, 963996, 1445994, 2891988]

約数ペア:

[(1, 2891988), (2, 1445994), (3, 963996), (4, 722997), (6, 481998), (9, 321332), (11, 262908), (12, 240999), (18, 160666), (22, 131454), (33, 87636), (36, 80333), (44, 65727), (66, 43818), (67, 43164), (99, 29212), (109, 26532), (132, 21909), (134, 21582), (198, 14606), (201, 14388), (218, 13266), (268, 10791), (327, 8844), (396, 7303), (402, 7194), (436, 6633), (603, 4796), (654, 4422), (737, 3924), (804, 3597), (981, 2948), (1199, 2412), (1206, 2398), (1308, 2211), (1474, 1962)]