21419325

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{4139}}^1$

素因数の和:4178

約数の個数: 36

約数和(自身を含む): 40042080

約数和(自身を除く): 18622755

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 115, 207, 225, 345, 575, 1035, 1725, 4139, 5175, 12417, 20695, 37251, 62085, 95197, 103475, 186255, 285591, 310425, 475985, 856773, 931275, 1427955, 2379925, 4283865, 7139775, 21419325]

約数ペア:

[(1, 21419325), (3, 7139775), (5, 4283865), (9, 2379925), (15, 1427955), (23, 931275), (25, 856773), (45, 475985), (69, 310425), (75, 285591), (115, 186255), (207, 103475), (225, 95197), (345, 62085), (575, 37251), (1035, 20695), (1725, 12417), (4139, 5175)]