19925772

素因数分解:

$2^2\times 3^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1\times {\mathrm{167}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 47830272

約数和(自身を除く): 27904500

約数列:

[1, 2, 3, 4, 6, 12, 61, 122, 163, 167, 183, 244, 326, 334, 366, 489, 501, 652, 668, 732, 978, 1002, 1956, 2004, 9943, 10187, 19886, 20374, 27221, 29829, 30561, 39772, 40748, 54442, 59658, 61122, 81663, 108884, 119316, 122244, 163326, 326652, 1660481, 3320962, 4981443, 6641924, 9962886, 19925772]

約数ペア:

[(1, 19925772), (2, 9962886), (3, 6641924), (4, 4981443), (6, 3320962), (12, 1660481), (61, 326652), (122, 163326), (163, 122244), (167, 119316), (183, 108884), (244, 81663), (326, 61122), (334, 59658), (366, 54442), (489, 40748), (501, 39772), (652, 30561), (668, 29829), (732, 27221), (978, 20374), (1002, 19886), (1956, 10187), (2004, 9943)]