213928988

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{853}}^1$

素因数の和:943

約数の個数: 72

約数和(自身を含む): 472596768

約数和(自身を除く): 258667780

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 53, 91, 106, 169, 182, 212, 338, 364, 371, 676, 689, 742, 853, 1183, 1378, 1484, 1706, 2366, 2756, 3412, 4732, 4823, 5971, 8957, 9646, 11089, 11942, 17914, 19292, 22178, 23884, 35828, 44356, 45209, 62699, 77623, 90418, 125398, 144157, 155246, 180836, 250796, 288314, 310492, 316463, 576628, 587717, 632926, 1009099, 1175434, 1265852, 2018198, 2350868, 4036396, 4114019, 7640321, 8228038, 15280642, 16456076, 30561284, 53482247, 106964494, 213928988]

約数ペア:

[(1, 213928988), (2, 106964494), (4, 53482247), (7, 30561284), (13, 16456076), (14, 15280642), (26, 8228038), (28, 7640321), (52, 4114019), (53, 4036396), (91, 2350868), (106, 2018198), (169, 1265852), (182, 1175434), (212, 1009099), (338, 632926), (364, 587717), (371, 576628), (676, 316463), (689, 310492), (742, 288314), (853, 250796), (1183, 180836), (1378, 155246), (1484, 144157), (1706, 125398), (2366, 90418), (2756, 77623), (3412, 62699), (4732, 45209), (4823, 44356), (5971, 35828), (8957, 23884), (9646, 22178), (11089, 19292), (11942, 17914)]