17640441

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1$

素因数の和:231

約数の個数: 72

約数和(自身を含む): 33985224

約数和(自身を除く): 16344783

約数列:

[1, 3, 7, 9, 13, 17, 21, 39, 49, 51, 63, 91, 117, 119, 147, 153, 181, 221, 273, 357, 441, 543, 637, 663, 819, 833, 1071, 1267, 1547, 1629, 1911, 1989, 2353, 2499, 3077, 3801, 4641, 5733, 7059, 7497, 8869, 9231, 10829, 11403, 13923, 16471, 21177, 21539, 26607, 27693, 32487, 40001, 49413, 64617, 79821, 97461, 115297, 120003, 148239, 150773, 193851, 280007, 345891, 360009, 452319, 840021, 1037673, 1356957, 1960049, 2520063, 5880147, 17640441]

約数ペア:

[(1, 17640441), (3, 5880147), (7, 2520063), (9, 1960049), (13, 1356957), (17, 1037673), (21, 840021), (39, 452319), (49, 360009), (51, 345891), (63, 280007), (91, 193851), (117, 150773), (119, 148239), (147, 120003), (153, 115297), (181, 97461), (221, 79821), (273, 64617), (357, 49413), (441, 40001), (543, 32487), (637, 27693), (663, 26607), (819, 21539), (833, 21177), (1071, 16471), (1267, 13923), (1547, 11403), (1629, 10829), (1911, 9231), (1989, 8869), (2353, 7497), (2499, 7059), (3077, 5733), (3801, 4641)]