21285537008

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{571}}^1\times {\mathrm{62969}}^1$

素因数の和:63585

約数の個数: 40

約数和(自身を含む): 42430193520

約数和(自身を除く): 21144656512

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 571, 592, 1142, 2284, 4568, 9136, 21127, 42254, 62969, 84508, 125938, 169016, 251876, 338032, 503752, 1007504, 2329853, 4659706, 9319412, 18638824, 35955299, 37277648, 71910598, 143821196, 287642392, 575284784, 1330346063, 2660692126, 5321384252, 10642768504, 21285537008]

約数ペア:

[(1, 21285537008), (2, 10642768504), (4, 5321384252), (8, 2660692126), (16, 1330346063), (37, 575284784), (74, 287642392), (148, 143821196), (296, 71910598), (571, 37277648), (592, 35955299), (1142, 18638824), (2284, 9319412), (4568, 4659706), (9136, 2329853), (21127, 1007504), (42254, 503752), (62969, 338032), (84508, 251876), (125938, 169016)]