16991172

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{401}}^1$

素因数の和:529

約数の個数: 72

約数和(自身を含む): 47410272

約数和(自身を除く): 30419100

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 107, 132, 198, 214, 321, 396, 401, 428, 642, 802, 963, 1177, 1203, 1284, 1604, 1926, 2354, 2406, 3531, 3609, 3852, 4411, 4708, 4812, 7062, 7218, 8822, 10593, 13233, 14124, 14436, 17644, 21186, 26466, 39699, 42372, 42907, 52932, 79398, 85814, 128721, 158796, 171628, 257442, 386163, 471977, 514884, 772326, 943954, 1415931, 1544652, 1887908, 2831862, 4247793, 5663724, 8495586, 16991172]

約数ペア:

[(1, 16991172), (2, 8495586), (3, 5663724), (4, 4247793), (6, 2831862), (9, 1887908), (11, 1544652), (12, 1415931), (18, 943954), (22, 772326), (33, 514884), (36, 471977), (44, 386163), (66, 257442), (99, 171628), (107, 158796), (132, 128721), (198, 85814), (214, 79398), (321, 52932), (396, 42907), (401, 42372), (428, 39699), (642, 26466), (802, 21186), (963, 17644), (1177, 14436), (1203, 14124), (1284, 13233), (1604, 10593), (1926, 8822), (2354, 7218), (2406, 7062), (3531, 4812), (3609, 4708), (3852, 4411)]