19997172

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{14243}}^1$

素因数の和:14269

約数の個数: 48

約数和(自身を含む): 55836480

約数和(自身を除く): 35839308

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 108, 117, 156, 234, 351, 468, 702, 1404, 14243, 28486, 42729, 56972, 85458, 128187, 170916, 185159, 256374, 370318, 384561, 512748, 555477, 740636, 769122, 1110954, 1538244, 1666431, 2221908, 3332862, 4999293, 6665724, 9998586, 19997172]

約数ペア:

[(1, 19997172), (2, 9998586), (3, 6665724), (4, 4999293), (6, 3332862), (9, 2221908), (12, 1666431), (13, 1538244), (18, 1110954), (26, 769122), (27, 740636), (36, 555477), (39, 512748), (52, 384561), (54, 370318), (78, 256374), (108, 185159), (117, 170916), (156, 128187), (234, 85458), (351, 56972), (468, 42729), (702, 28486), (1404, 14243)]