18849159

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1$

素因数の和:245

約数の個数: 64

約数和(自身を含む): 34944000

約数和(自身を除く): 16094841

約数列:

[1, 3, 7, 9, 19, 21, 27, 29, 57, 63, 87, 133, 171, 181, 189, 203, 261, 399, 513, 543, 551, 609, 783, 1197, 1267, 1629, 1653, 1827, 3439, 3591, 3801, 3857, 4887, 4959, 5249, 5481, 10317, 11403, 11571, 14877, 15747, 24073, 30951, 34209, 34713, 36743, 47241, 72219, 92853, 99731, 104139, 110229, 141723, 216657, 299193, 330687, 649971, 698117, 897579, 992061, 2094351, 2692737, 6283053, 18849159]

約数ペア:

[(1, 18849159), (3, 6283053), (7, 2692737), (9, 2094351), (19, 992061), (21, 897579), (27, 698117), (29, 649971), (57, 330687), (63, 299193), (87, 216657), (133, 141723), (171, 110229), (181, 104139), (189, 99731), (203, 92853), (261, 72219), (399, 47241), (513, 36743), (543, 34713), (551, 34209), (609, 30951), (783, 24073), (1197, 15747), (1267, 14877), (1629, 11571), (1653, 11403), (1827, 10317), (3439, 5481), (3591, 5249), (3801, 4959), (3857, 4887)]