21931260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{907}}^1$

素因数の和:963

約数の個数: 96

約数和(自身を含む): 68339712

約数和(自身を除く): 46408452

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 31, 39, 52, 60, 62, 65, 78, 93, 124, 130, 155, 156, 186, 195, 260, 310, 372, 390, 403, 465, 620, 780, 806, 907, 930, 1209, 1612, 1814, 1860, 2015, 2418, 2721, 3628, 4030, 4535, 4836, 5442, 6045, 8060, 9070, 10884, 11791, 12090, 13605, 18140, 23582, 24180, 27210, 28117, 35373, 47164, 54420, 56234, 58955, 70746, 84351, 112468, 117910, 140585, 141492, 168702, 176865, 235820, 281170, 337404, 353730, 365521, 421755, 562340, 707460, 731042, 843510, 1096563, 1462084, 1687020, 1827605, 2193126, 3655210, 4386252, 5482815, 7310420, 10965630, 21931260]

約数ペア:

[(1, 21931260), (2, 10965630), (3, 7310420), (4, 5482815), (5, 4386252), (6, 3655210), (10, 2193126), (12, 1827605), (13, 1687020), (15, 1462084), (20, 1096563), (26, 843510), (30, 731042), (31, 707460), (39, 562340), (52, 421755), (60, 365521), (62, 353730), (65, 337404), (78, 281170), (93, 235820), (124, 176865), (130, 168702), (155, 141492), (156, 140585), (186, 117910), (195, 112468), (260, 84351), (310, 70746), (372, 58955), (390, 56234), (403, 54420), (465, 47164), (620, 35373), (780, 28117), (806, 27210), (907, 24180), (930, 23582), (1209, 18140), (1612, 13605), (1814, 12090), (1860, 11791), (2015, 10884), (2418, 9070), (2721, 8060), (3628, 6045), (4030, 5442), (4535, 4836)]