About the Number

20947290

20947289 ← → 20947291

2進数表記:1001111111010000101011010

漢数字表記:二千九十四万七千二百九十

素因数分解:

2 1 × 3 1 × 5 1 × 7 1 × 13 1 × 7673 1

素因数の和:7703
約数の個数: 64
約数和(自身を含む): 61883136
約数和(自身を除く): 40935846

約数列:
[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 182, 195, 210, 273, 390, 455, 546, 910, 1365, 2730, 7673, 15346, 23019, 38365, 46038, 53711, 76730, 99749, 107422, 115095, 161133, 199498, 230190, 268555, 299247, 322266, 498745, 537110, 598494, 698243, 805665, 997490, 1396486, 1496235, 1611330, 2094729, 2992470, 3491215, 4189458, 6982430, 10473645, 20947290]

約数ペア:
[(1, 20947290), (2, 10473645), (3, 6982430), (5, 4189458), (6, 3491215), (7, 2992470), (10, 2094729), (13, 1611330), (14, 1496235), (15, 1396486), (21, 997490), (26, 805665), (30, 698243), (35, 598494), (39, 537110), (42, 498745), (65, 322266), (70, 299247), (78, 268555), (91, 230190), (105, 199498), (130, 161133), (182, 115095), (195, 107422), (210, 99749), (273, 76730), (390, 53711), (455, 46038), (546, 38365), (910, 23019), (1365, 15346), (2730, 7673)]

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