21508722

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1031}}^1$

素因数の和:1119

約数の個数: 48

約数和(自身を含む): 49907520

約数和(自身を除く): 28398798

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 61, 114, 122, 171, 183, 342, 366, 549, 1031, 1098, 1159, 2062, 2318, 3093, 3477, 6186, 6954, 9279, 10431, 18558, 19589, 20862, 39178, 58767, 62891, 117534, 125782, 176301, 188673, 352602, 377346, 566019, 1132038, 1194929, 2389858, 3584787, 7169574, 10754361, 21508722]

約数ペア:

[(1, 21508722), (2, 10754361), (3, 7169574), (6, 3584787), (9, 2389858), (18, 1194929), (19, 1132038), (38, 566019), (57, 377346), (61, 352602), (114, 188673), (122, 176301), (171, 125782), (183, 117534), (342, 62891), (366, 58767), (549, 39178), (1031, 20862), (1098, 19589), (1159, 18558), (2062, 10431), (2318, 9279), (3093, 6954), (3477, 6186)]