21434480

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{9239}}^1$

素因数の和:9281

約数の個数: 40

約数和(自身を含む): 51559200

約数和(自身を除く): 30124720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 9239, 18478, 36956, 46195, 73912, 92390, 147824, 184780, 267931, 369560, 535862, 739120, 1071724, 1339655, 2143448, 2679310, 4286896, 5358620, 10717240, 21434480]

約数ペア:

[(1, 21434480), (2, 10717240), (4, 5358620), (5, 4286896), (8, 2679310), (10, 2143448), (16, 1339655), (20, 1071724), (29, 739120), (40, 535862), (58, 369560), (80, 267931), (116, 184780), (145, 147824), (232, 92390), (290, 73912), (464, 46195), (580, 36956), (1160, 18478), (2320, 9239)]