About the Number

21221319

21221318 ← → 21221320

2進数表記:1010000111100111111000111

漢数字表記:二千百二十二万千三百十九

素因数分解:

3 1 × 7 1 × 73 1 × 109 1 × 127 1

素因数の和:319
約数の個数: 32
約数和(自身を含む): 33341440
約数和(自身を除く): 12120121

約数列:
[1, 3, 7, 21, 73, 109, 127, 219, 327, 381, 511, 763, 889, 1533, 2289, 2667, 7957, 9271, 13843, 23871, 27813, 41529, 55699, 64897, 96901, 167097, 194691, 290703, 1010539, 3031617, 7073773, 21221319]

約数ペア:
[(1, 21221319), (3, 7073773), (7, 3031617), (21, 1010539), (73, 290703), (109, 194691), (127, 167097), (219, 96901), (327, 64897), (381, 55699), (511, 41529), (763, 27813), (889, 23871), (1533, 13843), (2289, 9271), (2667, 7957)]

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