21993944

素因数分解:

$2^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2953}}^1$

素因数の和:2992

約数の個数: 48

約数和(自身を含む): 50513400

約数和(自身を除く): 28519456

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 49, 56, 76, 98, 133, 152, 196, 266, 392, 532, 931, 1064, 1862, 2953, 3724, 5906, 7448, 11812, 20671, 23624, 41342, 56107, 82684, 112214, 144697, 165368, 224428, 289394, 392749, 448856, 578788, 785498, 1157576, 1570996, 2749243, 3141992, 5498486, 10996972, 21993944]

約数ペア:

[(1, 21993944), (2, 10996972), (4, 5498486), (7, 3141992), (8, 2749243), (14, 1570996), (19, 1157576), (28, 785498), (38, 578788), (49, 448856), (56, 392749), (76, 289394), (98, 224428), (133, 165368), (152, 144697), (196, 112214), (266, 82684), (392, 56107), (532, 41342), (931, 23624), (1064, 20671), (1862, 11812), (2953, 7448), (3724, 5906)]