About the Number

21239580

21239579 ← → 21239581

2進数表記:1010001000001011100011100

漢数字表記:二千百二十三万九千五百八十

素因数分解:

2 2 × 3 1 × 5 1 × 23 1 × 15391 1

素因数の和:15426
約数の個数: 48
約数和(自身を含む): 62060544
約数和(自身を除く): 40820964

約数列:
[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 15391, 30782, 46173, 61564, 76955, 92346, 153910, 184692, 230865, 307820, 353993, 461730, 707986, 923460, 1061979, 1415972, 1769965, 2123958, 3539930, 4247916, 5309895, 7079860, 10619790, 21239580]

約数ペア:
[(1, 21239580), (2, 10619790), (3, 7079860), (4, 5309895), (5, 4247916), (6, 3539930), (10, 2123958), (12, 1769965), (15, 1415972), (20, 1061979), (23, 923460), (30, 707986), (46, 461730), (60, 353993), (69, 307820), (92, 230865), (115, 184692), (138, 153910), (230, 92346), (276, 76955), (345, 61564), (460, 46173), (690, 30782), (1380, 15391)]

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