21518658

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2549}}^1$

素因数の和:2631

約数の個数: 48

約数和(自身を含む): 54100800

約数和(自身を除く): 32582142

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 67, 126, 134, 201, 402, 469, 603, 938, 1206, 1407, 2549, 2814, 4221, 5098, 7647, 8442, 15294, 17843, 22941, 35686, 45882, 53529, 107058, 160587, 170783, 321174, 341566, 512349, 1024698, 1195481, 1537047, 2390962, 3074094, 3586443, 7172886, 10759329, 21518658]

約数ペア:

[(1, 21518658), (2, 10759329), (3, 7172886), (6, 3586443), (7, 3074094), (9, 2390962), (14, 1537047), (18, 1195481), (21, 1024698), (42, 512349), (63, 341566), (67, 321174), (126, 170783), (134, 160587), (201, 107058), (402, 53529), (469, 45882), (603, 35686), (938, 22941), (1206, 17843), (1407, 15294), (2549, 8442), (2814, 7647), (4221, 5098)]