19681896

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{317}}^1$

素因数の和:538

約数の個数: 64

約数和(自身を含む): 53424000

約数和(自身を除く): 33742104

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 199, 312, 317, 398, 597, 634, 796, 951, 1194, 1268, 1592, 1902, 2388, 2536, 2587, 3804, 4121, 4776, 5174, 7608, 7761, 8242, 10348, 12363, 15522, 16484, 20696, 24726, 31044, 32968, 49452, 62088, 63083, 98904, 126166, 189249, 252332, 378498, 504664, 756996, 820079, 1513992, 1640158, 2460237, 3280316, 4920474, 6560632, 9840948, 19681896]

約数ペア:

[(1, 19681896), (2, 9840948), (3, 6560632), (4, 4920474), (6, 3280316), (8, 2460237), (12, 1640158), (13, 1513992), (24, 820079), (26, 756996), (39, 504664), (52, 378498), (78, 252332), (104, 189249), (156, 126166), (199, 98904), (312, 63083), (317, 62088), (398, 49452), (597, 32968), (634, 31044), (796, 24726), (951, 20696), (1194, 16484), (1268, 15522), (1592, 12363), (1902, 10348), (2388, 8242), (2536, 7761), (2587, 7608), (3804, 5174), (4121, 4776)]