21347220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:565

約数の個数: 96

約数和(自身を含む): 64512000

約数和(自身を除く): 43164780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 31, 46, 60, 62, 69, 92, 93, 115, 124, 138, 155, 186, 230, 276, 310, 345, 372, 460, 465, 499, 620, 690, 713, 930, 998, 1380, 1426, 1497, 1860, 1996, 2139, 2495, 2852, 2994, 3565, 4278, 4990, 5988, 7130, 7485, 8556, 9980, 10695, 11477, 14260, 14970, 15469, 21390, 22954, 29940, 30938, 34431, 42780, 45908, 46407, 57385, 61876, 68862, 77345, 92814, 114770, 137724, 154690, 172155, 185628, 229540, 232035, 309380, 344310, 355787, 464070, 688620, 711574, 928140, 1067361, 1423148, 1778935, 2134722, 3557870, 4269444, 5336805, 7115740, 10673610, 21347220]

約数ペア:

[(1, 21347220), (2, 10673610), (3, 7115740), (4, 5336805), (5, 4269444), (6, 3557870), (10, 2134722), (12, 1778935), (15, 1423148), (20, 1067361), (23, 928140), (30, 711574), (31, 688620), (46, 464070), (60, 355787), (62, 344310), (69, 309380), (92, 232035), (93, 229540), (115, 185628), (124, 172155), (138, 154690), (155, 137724), (186, 114770), (230, 92814), (276, 77345), (310, 68862), (345, 61876), (372, 57385), (460, 46407), (465, 45908), (499, 42780), (620, 34431), (690, 30938), (713, 29940), (930, 22954), (998, 21390), (1380, 15469), (1426, 14970), (1497, 14260), (1860, 11477), (1996, 10695), (2139, 9980), (2495, 8556), (2852, 7485), (2994, 7130), (3565, 5988), (4278, 4990)]