21119308

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{839}}^1$

素因数の和:910

約数の個数: 48

約数和(自身を含む): 45158400

約数和(自身を除く): 24039092

約数列:

[1, 2, 4, 7, 14, 28, 29, 31, 58, 62, 116, 124, 203, 217, 406, 434, 812, 839, 868, 899, 1678, 1798, 3356, 3596, 5873, 6293, 11746, 12586, 23492, 24331, 25172, 26009, 48662, 52018, 97324, 104036, 170317, 182063, 340634, 364126, 681268, 728252, 754261, 1508522, 3017044, 5279827, 10559654, 21119308]

約数ペア:

[(1, 21119308), (2, 10559654), (4, 5279827), (7, 3017044), (14, 1508522), (28, 754261), (29, 728252), (31, 681268), (58, 364126), (62, 340634), (116, 182063), (124, 170317), (203, 104036), (217, 97324), (406, 52018), (434, 48662), (812, 26009), (839, 25172), (868, 24331), (899, 23492), (1678, 12586), (1798, 11746), (3356, 6293), (3596, 5873)]