21678650

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2693}}^1$

素因数の和:2735

約数の個数: 48

約数和(自身を含む): 48104064

約数和(自身を除く): 26425414

約数列:

[1, 2, 5, 7, 10, 14, 23, 25, 35, 46, 50, 70, 115, 161, 175, 230, 322, 350, 575, 805, 1150, 1610, 2693, 4025, 5386, 8050, 13465, 18851, 26930, 37702, 61939, 67325, 94255, 123878, 134650, 188510, 309695, 433573, 471275, 619390, 867146, 942550, 1548475, 2167865, 3096950, 4335730, 10839325, 21678650]

約数ペア:

[(1, 21678650), (2, 10839325), (5, 4335730), (7, 3096950), (10, 2167865), (14, 1548475), (23, 942550), (25, 867146), (35, 619390), (46, 471275), (50, 433573), (70, 309695), (115, 188510), (161, 134650), (175, 123878), (230, 94255), (322, 67325), (350, 61939), (575, 37702), (805, 26930), (1150, 18851), (1610, 13465), (2693, 8050), (4025, 5386)]