21551235550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{419693}}^1$

素因数の和:419797

約数の個数: 48

約数和(自身を含む): 43715327040

約数和(自身を除く): 22164091490

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 79, 130, 158, 325, 395, 650, 790, 1027, 1975, 2054, 3950, 5135, 10270, 25675, 51350, 419693, 839386, 2098465, 4196930, 5456009, 10492325, 10912018, 20984650, 27280045, 33155747, 54560090, 66311494, 136400225, 165778735, 272800450, 331557470, 431024711, 828893675, 862049422, 1657787350, 2155123555, 4310247110, 10775617775, 21551235550]

約数ペア:

[(1, 21551235550), (2, 10775617775), (5, 4310247110), (10, 2155123555), (13, 1657787350), (25, 862049422), (26, 828893675), (50, 431024711), (65, 331557470), (79, 272800450), (130, 165778735), (158, 136400225), (325, 66311494), (395, 54560090), (650, 33155747), (790, 27280045), (1027, 20984650), (1975, 10912018), (2054, 10492325), (3950, 5456009), (5135, 4196930), (10270, 2098465), (25675, 839386), (51350, 419693)]