21287638

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1063}}^1$

素因数の和:1132

約数の個数: 32

約数和(自身を含む): 36771840

約数和(自身を除く): 15484202

約数列:

[1, 2, 17, 19, 31, 34, 38, 62, 323, 527, 589, 646, 1054, 1063, 1178, 2126, 10013, 18071, 20026, 20197, 32953, 36142, 40394, 65906, 343349, 560201, 626107, 686698, 1120402, 1252214, 10643819, 21287638]

約数ペア:

[(1, 21287638), (2, 10643819), (17, 1252214), (19, 1120402), (31, 686698), (34, 626107), (38, 560201), (62, 343349), (323, 65906), (527, 40394), (589, 36142), (646, 32953), (1054, 20197), (1063, 20026), (1178, 18071), (2126, 10013)]