19684912

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{293}}^1$

素因数の和:350

約数の個数: 80

約数和(自身を含む): 45934560

約数和(自身を除く): 26249648

約数列:

[1, 2, 4, 8, 13, 16, 17, 19, 26, 34, 38, 52, 68, 76, 104, 136, 152, 208, 221, 247, 272, 293, 304, 323, 442, 494, 586, 646, 884, 988, 1172, 1292, 1768, 1976, 2344, 2584, 3536, 3809, 3952, 4199, 4688, 4981, 5168, 5567, 7618, 8398, 9962, 11134, 15236, 16796, 19924, 22268, 30472, 33592, 39848, 44536, 60944, 64753, 67184, 72371, 79696, 89072, 94639, 129506, 144742, 189278, 259012, 289484, 378556, 518024, 578968, 757112, 1036048, 1157936, 1230307, 1514224, 2460614, 4921228, 9842456, 19684912]

約数ペア:

[(1, 19684912), (2, 9842456), (4, 4921228), (8, 2460614), (13, 1514224), (16, 1230307), (17, 1157936), (19, 1036048), (26, 757112), (34, 578968), (38, 518024), (52, 378556), (68, 289484), (76, 259012), (104, 189278), (136, 144742), (152, 129506), (208, 94639), (221, 89072), (247, 79696), (272, 72371), (293, 67184), (304, 64753), (323, 60944), (442, 44536), (494, 39848), (586, 33592), (646, 30472), (884, 22268), (988, 19924), (1172, 16796), (1292, 15236), (1768, 11134), (1976, 9962), (2344, 8398), (2584, 7618), (3536, 5567), (3809, 5168), (3952, 4981), (4199, 4688)]