19676916

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{691}}^1$

素因数の和:821

約数の個数: 72

約数和(自身を含む): 57430464

約数和(自身を除く): 37753548

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 113, 126, 226, 252, 339, 452, 678, 691, 791, 1017, 1356, 1382, 1582, 2034, 2073, 2373, 2764, 3164, 4068, 4146, 4746, 4837, 6219, 7119, 8292, 9492, 9674, 12438, 14238, 14511, 19348, 24876, 28476, 29022, 43533, 58044, 78083, 87066, 156166, 174132, 234249, 312332, 468498, 546581, 702747, 936996, 1093162, 1405494, 1639743, 2186324, 2810988, 3279486, 4919229, 6558972, 9838458, 19676916]

約数ペア:

[(1, 19676916), (2, 9838458), (3, 6558972), (4, 4919229), (6, 3279486), (7, 2810988), (9, 2186324), (12, 1639743), (14, 1405494), (18, 1093162), (21, 936996), (28, 702747), (36, 546581), (42, 468498), (63, 312332), (84, 234249), (113, 174132), (126, 156166), (226, 87066), (252, 78083), (339, 58044), (452, 43533), (678, 29022), (691, 28476), (791, 24876), (1017, 19348), (1356, 14511), (1382, 14238), (1582, 12438), (2034, 9674), (2073, 9492), (2373, 8292), (2764, 7119), (3164, 6219), (4068, 4837), (4146, 4746)]