19984776

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2531}}^1$

素因数の和:2594

約数の個数: 64

約数和(自身を含む): 58337280

約数和(自身を除く): 38352504

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 47, 56, 84, 94, 141, 168, 188, 282, 329, 376, 564, 658, 987, 1128, 1316, 1974, 2531, 2632, 3948, 5062, 7593, 7896, 10124, 15186, 17717, 20248, 30372, 35434, 53151, 60744, 70868, 106302, 118957, 141736, 212604, 237914, 356871, 425208, 475828, 713742, 832699, 951656, 1427484, 1665398, 2498097, 2854968, 3330796, 4996194, 6661592, 9992388, 19984776]

約数ペア:

[(1, 19984776), (2, 9992388), (3, 6661592), (4, 4996194), (6, 3330796), (7, 2854968), (8, 2498097), (12, 1665398), (14, 1427484), (21, 951656), (24, 832699), (28, 713742), (42, 475828), (47, 425208), (56, 356871), (84, 237914), (94, 212604), (141, 141736), (168, 118957), (188, 106302), (282, 70868), (329, 60744), (376, 53151), (564, 35434), (658, 30372), (987, 20248), (1128, 17717), (1316, 15186), (1974, 10124), (2531, 7896), (2632, 7593), (3948, 5062)]