19807348

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:125

約数の個数: 72

約数和(自身を含む): 42245280

約数和(自身を除く): 22437932

約数列:

[1, 2, 4, 11, 19, 22, 29, 38, 43, 44, 58, 76, 86, 116, 172, 209, 319, 361, 418, 473, 551, 638, 722, 817, 836, 946, 1102, 1247, 1276, 1444, 1634, 1892, 2204, 2494, 3268, 3971, 4988, 6061, 7942, 8987, 10469, 12122, 13717, 15523, 15884, 17974, 20938, 23693, 24244, 27434, 31046, 35948, 41876, 47386, 54868, 62092, 94772, 115159, 170753, 230318, 260623, 341506, 450167, 460636, 521246, 683012, 900334, 1042492, 1800668, 4951837, 9903674, 19807348]

約数ペア:

[(1, 19807348), (2, 9903674), (4, 4951837), (11, 1800668), (19, 1042492), (22, 900334), (29, 683012), (38, 521246), (43, 460636), (44, 450167), (58, 341506), (76, 260623), (86, 230318), (116, 170753), (172, 115159), (209, 94772), (319, 62092), (361, 54868), (418, 47386), (473, 41876), (551, 35948), (638, 31046), (722, 27434), (817, 24244), (836, 23693), (946, 20938), (1102, 17974), (1247, 15884), (1276, 15523), (1444, 13717), (1634, 12122), (1892, 10469), (2204, 8987), (2494, 7942), (3268, 6061), (3971, 4988)]