21125650

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4643}}^1$

素因数の和:4675

約数の個数: 48

約数和(自身を含む): 48371904

約数和(自身を除く): 27246254

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 130, 175, 182, 325, 350, 455, 650, 910, 2275, 4550, 4643, 9286, 23215, 32501, 46430, 60359, 65002, 116075, 120718, 162505, 232150, 301795, 325010, 422513, 603590, 812525, 845026, 1508975, 1625050, 2112565, 3017950, 4225130, 10562825, 21125650]

約数ペア:

[(1, 21125650), (2, 10562825), (5, 4225130), (7, 3017950), (10, 2112565), (13, 1625050), (14, 1508975), (25, 845026), (26, 812525), (35, 603590), (50, 422513), (65, 325010), (70, 301795), (91, 232150), (130, 162505), (175, 120718), (182, 116075), (325, 65002), (350, 60359), (455, 46430), (650, 32501), (910, 23215), (2275, 9286), (4550, 4643)]