2161635

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{173}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 4284576

約数和(自身を除く): 2122941

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 49, 51, 85, 105, 119, 147, 173, 245, 255, 357, 519, 595, 735, 833, 865, 1211, 1785, 2499, 2595, 2941, 3633, 4165, 6055, 8477, 8823, 12495, 14705, 18165, 20587, 25431, 42385, 44115, 61761, 102935, 127155, 144109, 308805, 432327, 720545, 2161635]

約数ペア:

[(1, 2161635), (3, 720545), (5, 432327), (7, 308805), (15, 144109), (17, 127155), (21, 102935), (35, 61761), (49, 44115), (51, 42385), (85, 25431), (105, 20587), (119, 18165), (147, 14705), (173, 12495), (245, 8823), (255, 8477), (357, 6055), (519, 4165), (595, 3633), (735, 2941), (833, 2595), (865, 2499), (1211, 1785)]