30987747

素因数分解:

$3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{2423}}^1$

素因数の和:2472

約数の個数: 36

約数和(自身を含む): 53885520

約数和(自身を除く): 22897773

約数列:

[1, 3, 7, 9, 21, 29, 49, 63, 87, 147, 203, 261, 441, 609, 1421, 1827, 2423, 4263, 7269, 12789, 16961, 21807, 50883, 70267, 118727, 152649, 210801, 356181, 491869, 632403, 1068543, 1475607, 3443083, 4426821, 10329249, 30987747]

約数ペア:

[(1, 30987747), (3, 10329249), (7, 4426821), (9, 3443083), (21, 1475607), (29, 1068543), (49, 632403), (63, 491869), (87, 356181), (147, 210801), (203, 152649), (261, 118727), (441, 70267), (609, 50883), (1421, 21807), (1827, 16961), (2423, 12789), (4263, 7269)]