18718952

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{241}}^1$

素因数の和:346

約数の個数: 64

約数和(自身を含む): 42979200

約数和(自身を除く): 24260248

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 73, 76, 133, 146, 152, 241, 266, 292, 482, 511, 532, 584, 964, 1022, 1064, 1387, 1687, 1928, 2044, 2774, 3374, 4088, 4579, 5548, 6748, 9158, 9709, 11096, 13496, 17593, 18316, 19418, 32053, 35186, 36632, 38836, 64106, 70372, 77672, 123151, 128212, 140744, 246302, 256424, 334267, 492604, 668534, 985208, 1337068, 2339869, 2674136, 4679738, 9359476, 18718952]

約数ペア:

[(1, 18718952), (2, 9359476), (4, 4679738), (7, 2674136), (8, 2339869), (14, 1337068), (19, 985208), (28, 668534), (38, 492604), (56, 334267), (73, 256424), (76, 246302), (133, 140744), (146, 128212), (152, 123151), (241, 77672), (266, 70372), (292, 64106), (482, 38836), (511, 36632), (532, 35186), (584, 32053), (964, 19418), (1022, 18316), (1064, 17593), (1387, 13496), (1687, 11096), (1928, 9709), (2044, 9158), (2774, 6748), (3374, 5548), (4088, 4579)]