21045900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{31}}^2\times {\mathrm{73}}^1$

素因数の和:152

約数の個数: 108

約数和(自身を含む): 63782376

約数和(自身を除く): 42736476

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 31, 50, 60, 62, 73, 75, 93, 100, 124, 146, 150, 155, 186, 219, 292, 300, 310, 365, 372, 438, 465, 620, 730, 775, 876, 930, 961, 1095, 1460, 1550, 1825, 1860, 1922, 2190, 2263, 2325, 2883, 3100, 3650, 3844, 4380, 4526, 4650, 4805, 5475, 5766, 6789, 7300, 9052, 9300, 9610, 10950, 11315, 11532, 13578, 14415, 19220, 21900, 22630, 24025, 27156, 28830, 33945, 45260, 48050, 56575, 57660, 67890, 70153, 72075, 96100, 113150, 135780, 140306, 144150, 169725, 210459, 226300, 280612, 288300, 339450, 350765, 420918, 678900, 701530, 841836, 1052295, 1403060, 1753825, 2104590, 3507650, 4209180, 5261475, 7015300, 10522950, 21045900]

約数ペア:

[(1, 21045900), (2, 10522950), (3, 7015300), (4, 5261475), (5, 4209180), (6, 3507650), (10, 2104590), (12, 1753825), (15, 1403060), (20, 1052295), (25, 841836), (30, 701530), (31, 678900), (50, 420918), (60, 350765), (62, 339450), (73, 288300), (75, 280612), (93, 226300), (100, 210459), (124, 169725), (146, 144150), (150, 140306), (155, 135780), (186, 113150), (219, 96100), (292, 72075), (300, 70153), (310, 67890), (365, 57660), (372, 56575), (438, 48050), (465, 45260), (620, 33945), (730, 28830), (775, 27156), (876, 24025), (930, 22630), (961, 21900), (1095, 19220), (1460, 14415), (1550, 13578), (1825, 11532), (1860, 11315), (1922, 10950), (2190, 9610), (2263, 9300), (2325, 9052), (2883, 7300), (3100, 6789), (3650, 5766), (3844, 5475), (4380, 4805), (4526, 4650)]