About the Number

21387132

21387131 ← → 21387133

2進数表記:1010001100101011101111100

漢数字表記:二千百三十八万七千百三十二

素因数分解:

2 2 × 3 3 × 13 1 × 15233 1

素因数の和:15259
約数の個数: 48
約数和(自身を含む): 59717280
約数和(自身を除く): 38330148

約数列:
[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 108, 117, 156, 234, 351, 468, 702, 1404, 15233, 30466, 45699, 60932, 91398, 137097, 182796, 198029, 274194, 396058, 411291, 548388, 594087, 792116, 822582, 1188174, 1645164, 1782261, 2376348, 3564522, 5346783, 7129044, 10693566, 21387132]

約数ペア:
[(1, 21387132), (2, 10693566), (3, 7129044), (4, 5346783), (6, 3564522), (9, 2376348), (12, 1782261), (13, 1645164), (18, 1188174), (26, 822582), (27, 792116), (36, 594087), (39, 548388), (52, 411291), (54, 396058), (78, 274194), (108, 198029), (117, 182796), (156, 137097), (234, 91398), (351, 60932), (468, 45699), (702, 30466), (1404, 15233)]

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