21111700

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:241

約数の個数: 72

約数和(自身を含む): 48871872

約数和(自身を除く): 27760172

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 67, 92, 100, 115, 134, 137, 230, 268, 274, 335, 460, 548, 575, 670, 685, 1150, 1340, 1370, 1541, 1675, 2300, 2740, 3082, 3151, 3350, 3425, 6164, 6302, 6700, 6850, 7705, 9179, 12604, 13700, 15410, 15755, 18358, 30820, 31510, 36716, 38525, 45895, 63020, 77050, 78775, 91790, 154100, 157550, 183580, 211117, 229475, 315100, 422234, 458950, 844468, 917900, 1055585, 2111170, 4222340, 5277925, 10555850, 21111700]

約数ペア:

[(1, 21111700), (2, 10555850), (4, 5277925), (5, 4222340), (10, 2111170), (20, 1055585), (23, 917900), (25, 844468), (46, 458950), (50, 422234), (67, 315100), (92, 229475), (100, 211117), (115, 183580), (134, 157550), (137, 154100), (230, 91790), (268, 78775), (274, 77050), (335, 63020), (460, 45895), (548, 38525), (575, 36716), (670, 31510), (685, 30820), (1150, 18358), (1340, 15755), (1370, 15410), (1541, 13700), (1675, 12604), (2300, 9179), (2740, 7705), (3082, 6850), (3151, 6700), (3350, 6302), (3425, 6164)]