19717651052

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{653}}^1\times {\mathrm{1901}}^1$

素因数の和:2607

約数の個数: 72

約数和(自身を含む): 39810031632

約数和(自身を除く): 20092380580

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 361, 418, 653, 722, 836, 1306, 1444, 1901, 2612, 3802, 3971, 7183, 7604, 7942, 12407, 14366, 15884, 20911, 24814, 28732, 36119, 41822, 49628, 72238, 83644, 136477, 144476, 235733, 272954, 397309, 471466, 545908, 686261, 794618, 942932, 1241353, 1372522, 1589236, 2482706, 2593063, 2745044, 4965412, 5186126, 7548871, 10372252, 13654883, 15097742, 23585707, 27309766, 30195484, 47171414, 54619532, 94342828, 259442777, 448128433, 518885554, 896256866, 1037771108, 1792513732, 4929412763, 9858825526, 19717651052]

約数ペア:

[(1, 19717651052), (2, 9858825526), (4, 4929412763), (11, 1792513732), (19, 1037771108), (22, 896256866), (38, 518885554), (44, 448128433), (76, 259442777), (209, 94342828), (361, 54619532), (418, 47171414), (653, 30195484), (722, 27309766), (836, 23585707), (1306, 15097742), (1444, 13654883), (1901, 10372252), (2612, 7548871), (3802, 5186126), (3971, 4965412), (7183, 2745044), (7604, 2593063), (7942, 2482706), (12407, 1589236), (14366, 1372522), (15884, 1241353), (20911, 942932), (24814, 794618), (28732, 686261), (36119, 545908), (41822, 471466), (49628, 397309), (72238, 272954), (83644, 235733), (136477, 144476)]