21200010

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2861}}^1$

素因数の和:2903

約数の個数: 64

約数和(自身を含む): 57697920

約数和(自身を除く): 36497910

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 19, 26, 30, 38, 39, 57, 65, 78, 95, 114, 130, 190, 195, 247, 285, 390, 494, 570, 741, 1235, 1482, 2470, 2861, 3705, 5722, 7410, 8583, 14305, 17166, 28610, 37193, 42915, 54359, 74386, 85830, 108718, 111579, 163077, 185965, 223158, 271795, 326154, 371930, 543590, 557895, 706667, 815385, 1115790, 1413334, 1630770, 2120001, 3533335, 4240002, 7066670, 10600005, 21200010]

約数ペア:

[(1, 21200010), (2, 10600005), (3, 7066670), (5, 4240002), (6, 3533335), (10, 2120001), (13, 1630770), (15, 1413334), (19, 1115790), (26, 815385), (30, 706667), (38, 557895), (39, 543590), (57, 371930), (65, 326154), (78, 271795), (95, 223158), (114, 185965), (130, 163077), (190, 111579), (195, 108718), (247, 85830), (285, 74386), (390, 54359), (494, 42915), (570, 37193), (741, 28610), (1235, 17166), (1482, 14305), (2470, 8583), (2861, 7410), (3705, 5722)]