21250850

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1087}}^1$

素因数の和:1139

約数の個数: 48

約数和(自身を含む): 43711488

約数和(自身を除く): 22460638

約数列:

[1, 2, 5, 10, 17, 23, 25, 34, 46, 50, 85, 115, 170, 230, 391, 425, 575, 782, 850, 1087, 1150, 1955, 2174, 3910, 5435, 9775, 10870, 18479, 19550, 25001, 27175, 36958, 50002, 54350, 92395, 125005, 184790, 250010, 425017, 461975, 625025, 850034, 923950, 1250050, 2125085, 4250170, 10625425, 21250850]

約数ペア:

[(1, 21250850), (2, 10625425), (5, 4250170), (10, 2125085), (17, 1250050), (23, 923950), (25, 850034), (34, 625025), (46, 461975), (50, 425017), (85, 250010), (115, 184790), (170, 125005), (230, 92395), (391, 54350), (425, 50002), (575, 36958), (782, 27175), (850, 25001), (1087, 19550), (1150, 18479), (1955, 10870), (2174, 9775), (3910, 5435)]