19741904

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^2\times {\mathrm{149}}^1$

素因数の和:197

約数の個数: 90

約数和(自身を含む): 48504150

約数和(自身を除く): 28762246

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 49, 52, 56, 91, 98, 104, 112, 149, 169, 182, 196, 208, 298, 338, 364, 392, 596, 637, 676, 728, 784, 1043, 1183, 1192, 1274, 1352, 1456, 1937, 2086, 2366, 2384, 2548, 2704, 3874, 4172, 4732, 5096, 7301, 7748, 8281, 8344, 9464, 10192, 13559, 14602, 15496, 16562, 16688, 18928, 25181, 27118, 29204, 30992, 33124, 50362, 54236, 58408, 66248, 94913, 100724, 108472, 116816, 132496, 176267, 189826, 201448, 216944, 352534, 379652, 402896, 705068, 759304, 1233869, 1410136, 1518608, 2467738, 2820272, 4935476, 9870952, 19741904]

約数ペア:

[(1, 19741904), (2, 9870952), (4, 4935476), (7, 2820272), (8, 2467738), (13, 1518608), (14, 1410136), (16, 1233869), (26, 759304), (28, 705068), (49, 402896), (52, 379652), (56, 352534), (91, 216944), (98, 201448), (104, 189826), (112, 176267), (149, 132496), (169, 116816), (182, 108472), (196, 100724), (208, 94913), (298, 66248), (338, 58408), (364, 54236), (392, 50362), (596, 33124), (637, 30992), (676, 29204), (728, 27118), (784, 25181), (1043, 18928), (1183, 16688), (1192, 16562), (1274, 15496), (1352, 14602), (1456, 13559), (1937, 10192), (2086, 9464), (2366, 8344), (2384, 8281), (2548, 7748), (2704, 7301), (3874, 5096), (4172, 4732)]