21532520

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{14549}}^1$

素因数の和:14597

約数の個数: 32

約数和(自身を含む): 49761000

約数和(自身を除く): 28228480

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 14549, 29098, 58196, 72745, 116392, 145490, 290980, 538313, 581960, 1076626, 2153252, 2691565, 4306504, 5383130, 10766260, 21532520]

約数ペア:

[(1, 21532520), (2, 10766260), (4, 5383130), (5, 4306504), (8, 2691565), (10, 2153252), (20, 1076626), (37, 581960), (40, 538313), (74, 290980), (148, 145490), (185, 116392), (296, 72745), (370, 58196), (740, 29098), (1480, 14549)]