19520595

素因数分解:

$3^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{307}}^1$

素因数の和:481

約数の個数: 40

約数和(自身を含む): 35330064

約数和(自身を除く): 15809469

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 157, 307, 405, 471, 785, 921, 1413, 1535, 2355, 2763, 4239, 4605, 7065, 8289, 12717, 13815, 21195, 24867, 41445, 48199, 63585, 124335, 144597, 240995, 433791, 722985, 1301373, 2168955, 3904119, 6506865, 19520595]

約数ペア:

[(1, 19520595), (3, 6506865), (5, 3904119), (9, 2168955), (15, 1301373), (27, 722985), (45, 433791), (81, 240995), (135, 144597), (157, 124335), (307, 63585), (405, 48199), (471, 41445), (785, 24867), (921, 21195), (1413, 13815), (1535, 12717), (2355, 8289), (2763, 7065), (4239, 4605)]