21186012

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^2\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:231

約数の個数: 72

約数和(自身を含む): 54154800

約数和(自身を除く): 32968788

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 41, 51, 68, 82, 102, 123, 149, 164, 204, 246, 289, 298, 447, 492, 578, 596, 697, 867, 894, 1156, 1394, 1734, 1788, 2091, 2533, 2788, 3468, 4182, 5066, 6109, 7599, 8364, 10132, 11849, 12218, 15198, 18327, 23698, 24436, 30396, 35547, 36654, 43061, 47396, 71094, 73308, 86122, 103853, 129183, 142188, 172244, 207706, 258366, 311559, 415412, 516732, 623118, 1246236, 1765501, 3531002, 5296503, 7062004, 10593006, 21186012]

約数ペア:

[(1, 21186012), (2, 10593006), (3, 7062004), (4, 5296503), (6, 3531002), (12, 1765501), (17, 1246236), (34, 623118), (41, 516732), (51, 415412), (68, 311559), (82, 258366), (102, 207706), (123, 172244), (149, 142188), (164, 129183), (204, 103853), (246, 86122), (289, 73308), (298, 71094), (447, 47396), (492, 43061), (578, 36654), (596, 35547), (697, 30396), (867, 24436), (894, 23698), (1156, 18327), (1394, 15198), (1734, 12218), (1788, 11849), (2091, 10132), (2533, 8364), (2788, 7599), (3468, 6109), (4182, 5066)]