About the Number

21387652

21387651 ← → 21387653

2進数表記:1010001100101100110000100

漢数字表記:二千百三十八万七千六百五十二

素因数分解:

2 2 × 11 1 × 13 1 × 139 1 × 269 1

素因数の和:436
約数の個数: 48
約数和(自身を含む): 44452800
約数和(自身を除く): 23065148

約数列:
[1, 2, 4, 11, 13, 22, 26, 44, 52, 139, 143, 269, 278, 286, 538, 556, 572, 1076, 1529, 1807, 2959, 3058, 3497, 3614, 5918, 6116, 6994, 7228, 11836, 13988, 19877, 37391, 38467, 39754, 74782, 76934, 79508, 149564, 153868, 411301, 486083, 822602, 972166, 1645204, 1944332, 5346913, 10693826, 21387652]

約数ペア:
[(1, 21387652), (2, 10693826), (4, 5346913), (11, 1944332), (13, 1645204), (22, 972166), (26, 822602), (44, 486083), (52, 411301), (139, 153868), (143, 149564), (269, 79508), (278, 76934), (286, 74782), (538, 39754), (556, 38467), (572, 37391), (1076, 19877), (1529, 13988), (1807, 11836), (2959, 7228), (3058, 6994), (3497, 6116), (3614, 5918)]

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