31721418

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{907}}^1$

素因数の和:1011

約数の個数: 48

約数和(自身を含む): 72240480

約数和(自身を除く): 40519062

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 67, 87, 134, 174, 201, 261, 402, 522, 603, 907, 1206, 1814, 1943, 2721, 3886, 5442, 5829, 8163, 11658, 16326, 17487, 26303, 34974, 52606, 60769, 78909, 121538, 157818, 182307, 236727, 364614, 473454, 546921, 1093842, 1762301, 3524602, 5286903, 10573806, 15860709, 31721418]

約数ペア:

[(1, 31721418), (2, 15860709), (3, 10573806), (6, 5286903), (9, 3524602), (18, 1762301), (29, 1093842), (58, 546921), (67, 473454), (87, 364614), (134, 236727), (174, 182307), (201, 157818), (261, 121538), (402, 78909), (522, 60769), (603, 52606), (907, 34974), (1206, 26303), (1814, 17487), (1943, 16326), (2721, 11658), (3886, 8163), (5442, 5829)]