21953890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1$

素因数の和:263

約数の個数: 64

約数和(自身を含む): 47628288

約数和(自身を除く): 25674398

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 67, 70, 134, 151, 155, 217, 302, 310, 335, 434, 469, 670, 755, 938, 1057, 1085, 1510, 2077, 2114, 2170, 2345, 4154, 4681, 4690, 5285, 9362, 10117, 10385, 10570, 14539, 20234, 20770, 23405, 29078, 32767, 46810, 50585, 65534, 70819, 72695, 101170, 141638, 145390, 163835, 313627, 327670, 354095, 627254, 708190, 1568135, 2195389, 3136270, 4390778, 10976945, 21953890]

約数ペア:

[(1, 21953890), (2, 10976945), (5, 4390778), (7, 3136270), (10, 2195389), (14, 1568135), (31, 708190), (35, 627254), (62, 354095), (67, 327670), (70, 313627), (134, 163835), (151, 145390), (155, 141638), (217, 101170), (302, 72695), (310, 70819), (335, 65534), (434, 50585), (469, 46810), (670, 32767), (755, 29078), (938, 23405), (1057, 20770), (1085, 20234), (1510, 14539), (2077, 10570), (2114, 10385), (2170, 10117), (2345, 9362), (4154, 5285), (4681, 4690)]