19390252

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 21252308

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 89, 124, 178, 217, 251, 356, 434, 502, 623, 868, 1004, 1246, 1757, 2492, 2759, 3514, 5518, 7028, 7781, 11036, 15562, 19313, 22339, 31124, 38626, 44678, 54467, 77252, 89356, 108934, 156373, 217868, 312746, 625492, 692509, 1385018, 2770036, 4847563, 9695126, 19390252]

約数ペア:

[(1, 19390252), (2, 9695126), (4, 4847563), (7, 2770036), (14, 1385018), (28, 692509), (31, 625492), (62, 312746), (89, 217868), (124, 156373), (178, 108934), (217, 89356), (251, 77252), (356, 54467), (434, 44678), (502, 38626), (623, 31124), (868, 22339), (1004, 19313), (1246, 15562), (1757, 11036), (2492, 7781), (2759, 7028), (3514, 5518)]