21910450

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{173}}^1$

素因数の和:351

約数の個数: 48

約数和(自身を含む): 43691400

約数和(自身を除く): 21780950

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 149, 170, 173, 298, 346, 425, 745, 850, 865, 1490, 1730, 2533, 2941, 3725, 4325, 5066, 5882, 7450, 8650, 12665, 14705, 25330, 25777, 29410, 51554, 63325, 73525, 126650, 128885, 147050, 257770, 438209, 644425, 876418, 1288850, 2191045, 4382090, 10955225, 21910450]

約数ペア:

[(1, 21910450), (2, 10955225), (5, 4382090), (10, 2191045), (17, 1288850), (25, 876418), (34, 644425), (50, 438209), (85, 257770), (149, 147050), (170, 128885), (173, 126650), (298, 73525), (346, 63325), (425, 51554), (745, 29410), (850, 25777), (865, 25330), (1490, 14705), (1730, 12665), (2533, 8650), (2941, 7450), (3725, 5882), (4325, 5066)]