19815796

素因数分解:

$2^2\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1$

素因数の和:150

約数の個数: 96

約数和(自身を含む): 47980800

約数和(自身を除く): 28165004

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 49, 52, 77, 91, 98, 101, 143, 154, 182, 196, 202, 286, 308, 343, 364, 404, 539, 572, 637, 686, 707, 1001, 1078, 1111, 1274, 1313, 1372, 1414, 2002, 2156, 2222, 2548, 2626, 2828, 3773, 4004, 4444, 4459, 4949, 5252, 7007, 7546, 7777, 8918, 9191, 9898, 14014, 14443, 15092, 15554, 17836, 18382, 19796, 28028, 28886, 31108, 34643, 36764, 49049, 54439, 57772, 64337, 69286, 98098, 101101, 108878, 128674, 138572, 196196, 202202, 217756, 257348, 381073, 404404, 450359, 707707, 762146, 900718, 1415414, 1524292, 1801436, 2830828, 4953949, 9907898, 19815796]

約数ペア:

[(1, 19815796), (2, 9907898), (4, 4953949), (7, 2830828), (11, 1801436), (13, 1524292), (14, 1415414), (22, 900718), (26, 762146), (28, 707707), (44, 450359), (49, 404404), (52, 381073), (77, 257348), (91, 217756), (98, 202202), (101, 196196), (143, 138572), (154, 128674), (182, 108878), (196, 101101), (202, 98098), (286, 69286), (308, 64337), (343, 57772), (364, 54439), (404, 49049), (539, 36764), (572, 34643), (637, 31108), (686, 28886), (707, 28028), (1001, 19796), (1078, 18382), (1111, 17836), (1274, 15554), (1313, 15092), (1372, 14443), (1414, 14014), (2002, 9898), (2156, 9191), (2222, 8918), (2548, 7777), (2626, 7546), (2828, 7007), (3773, 5252), (4004, 4949), (4444, 4459)]