20952402

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:239

約数の個数: 64

約数和(自身を含む): 47139840

約数和(自身を除く): 26187438

約数列:

[1, 2, 3, 6, 19, 23, 38, 46, 57, 61, 69, 114, 122, 131, 138, 183, 262, 366, 393, 437, 786, 874, 1159, 1311, 1403, 2318, 2489, 2622, 2806, 3013, 3477, 4209, 4978, 6026, 6954, 7467, 7991, 8418, 9039, 14934, 15982, 18078, 23973, 26657, 47946, 53314, 57247, 79971, 114494, 151829, 159942, 171741, 183793, 303658, 343482, 367586, 455487, 551379, 910974, 1102758, 3492067, 6984134, 10476201, 20952402]

約数ペア:

[(1, 20952402), (2, 10476201), (3, 6984134), (6, 3492067), (19, 1102758), (23, 910974), (38, 551379), (46, 455487), (57, 367586), (61, 343482), (69, 303658), (114, 183793), (122, 171741), (131, 159942), (138, 151829), (183, 114494), (262, 79971), (366, 57247), (393, 53314), (437, 47946), (786, 26657), (874, 23973), (1159, 18078), (1311, 15982), (1403, 14934), (2318, 9039), (2489, 8418), (2622, 7991), (2806, 7467), (3013, 6954), (3477, 6026), (4209, 4978)]