21432970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{953}}^1$

素因数の和:1146

約数の個数: 32

約数和(自身を含む): 41830992

約数和(自身を除く): 20398022

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 173, 346, 865, 953, 1730, 1906, 2249, 4498, 4765, 9530, 11245, 12389, 22490, 24778, 61945, 123890, 164869, 329738, 824345, 1648690, 2143297, 4286594, 10716485, 21432970]

約数ペア:

[(1, 21432970), (2, 10716485), (5, 4286594), (10, 2143297), (13, 1648690), (26, 824345), (65, 329738), (130, 164869), (173, 123890), (346, 61945), (865, 24778), (953, 22490), (1730, 12389), (1906, 11245), (2249, 9530), (4498, 4765)]