About the Number

20492871

20492870 ← → 20492872

2進数表記:1001110001011001001000111

漢数字表記:二千四十九万二千八百七十一

素因数分解:

3 1 × 7 1 × 17 1 × 137 1 × 419 1

素因数の和:583
約数の個数: 32
約数和(自身を含む): 33384960
約数和(自身を除く): 12892089

約数列:
[1, 3, 7, 17, 21, 51, 119, 137, 357, 411, 419, 959, 1257, 2329, 2877, 2933, 6987, 7123, 8799, 16303, 21369, 48909, 49861, 57403, 149583, 172209, 401821, 975851, 1205463, 2927553, 6830957, 20492871]

約数ペア:
[(1, 20492871), (3, 6830957), (7, 2927553), (17, 1205463), (21, 975851), (51, 401821), (119, 172209), (137, 149583), (357, 57403), (411, 49861), (419, 48909), (959, 21369), (1257, 16303), (2329, 8799), (2877, 7123), (2933, 6987)]

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