21871360

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{2441}}^1$

素因数の和:2469

約数の個数: 72

約数和(自身を含む): 59897376

約数和(自身を除く): 38026016

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 2441, 4480, 4882, 8960, 9764, 12205, 17087, 19528, 24410, 34174, 39056, 48820, 68348, 78112, 85435, 97640, 136696, 156224, 170870, 195280, 273392, 312448, 341740, 390560, 546784, 624896, 683480, 781120, 1093568, 1366960, 1562240, 2187136, 2733920, 3124480, 4374272, 5467840, 10935680, 21871360]

約数ペア:

[(1, 21871360), (2, 10935680), (4, 5467840), (5, 4374272), (7, 3124480), (8, 2733920), (10, 2187136), (14, 1562240), (16, 1366960), (20, 1093568), (28, 781120), (32, 683480), (35, 624896), (40, 546784), (56, 390560), (64, 341740), (70, 312448), (80, 273392), (112, 195280), (128, 170870), (140, 156224), (160, 136696), (224, 97640), (256, 85435), (280, 78112), (320, 68348), (448, 48820), (560, 39056), (640, 34174), (896, 24410), (1120, 19528), (1280, 17087), (1792, 12205), (2240, 9764), (2441, 8960), (4480, 4882)]