21437778820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{887}}^1\times {\mathrm{52541}}^1$

素因数の和:53460

約数の個数: 48

約数和(自身を含む): 47030554368

約数和(自身を除く): 25592775548

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 887, 1774, 3548, 4435, 8870, 17740, 20401, 40802, 52541, 81604, 102005, 105082, 204010, 210164, 262705, 408020, 525410, 1050820, 1208443, 2416886, 4833772, 6042215, 12084430, 24168860, 46603867, 93207734, 186415468, 233019335, 466038670, 932077340, 1071888941, 2143777882, 4287555764, 5359444705, 10718889410, 21437778820]

約数ペア:

[(1, 21437778820), (2, 10718889410), (4, 5359444705), (5, 4287555764), (10, 2143777882), (20, 1071888941), (23, 932077340), (46, 466038670), (92, 233019335), (115, 186415468), (230, 93207734), (460, 46603867), (887, 24168860), (1774, 12084430), (3548, 6042215), (4435, 4833772), (8870, 2416886), (17740, 1208443), (20401, 1050820), (40802, 525410), (52541, 408020), (81604, 262705), (102005, 210164), (105082, 204010)]