21603996

素因数分解:

$2^2\times 3^4\times {\mathrm{131}}^1\times {\mathrm{509}}^1$

素因数の和:656

約数の個数: 60

約数和(自身を含む): 57020040

約数和(自身を除く): 35416044

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 131, 162, 262, 324, 393, 509, 524, 786, 1018, 1179, 1527, 1572, 2036, 2358, 3054, 3537, 4581, 4716, 6108, 7074, 9162, 10611, 13743, 14148, 18324, 21222, 27486, 41229, 42444, 54972, 66679, 82458, 133358, 164916, 200037, 266716, 400074, 600111, 800148, 1200222, 1800333, 2400444, 3600666, 5400999, 7201332, 10801998, 21603996]

約数ペア:

[(1, 21603996), (2, 10801998), (3, 7201332), (4, 5400999), (6, 3600666), (9, 2400444), (12, 1800333), (18, 1200222), (27, 800148), (36, 600111), (54, 400074), (81, 266716), (108, 200037), (131, 164916), (162, 133358), (262, 82458), (324, 66679), (393, 54972), (509, 42444), (524, 41229), (786, 27486), (1018, 21222), (1179, 18324), (1527, 14148), (1572, 13743), (2036, 10611), (2358, 9162), (3054, 7074), (3537, 6108), (4581, 4716)]