21263160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{4789}}^1$

素因数の和:4840

約数の個数: 64

約数和(自身を含む): 65527200

約数和(自身を除く): 44264040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 60, 74, 111, 120, 148, 185, 222, 296, 370, 444, 555, 740, 888, 1110, 1480, 2220, 4440, 4789, 9578, 14367, 19156, 23945, 28734, 38312, 47890, 57468, 71835, 95780, 114936, 143670, 177193, 191560, 287340, 354386, 531579, 574680, 708772, 885965, 1063158, 1417544, 1771930, 2126316, 2657895, 3543860, 4252632, 5315790, 7087720, 10631580, 21263160]

約数ペア:

[(1, 21263160), (2, 10631580), (3, 7087720), (4, 5315790), (5, 4252632), (6, 3543860), (8, 2657895), (10, 2126316), (12, 1771930), (15, 1417544), (20, 1063158), (24, 885965), (30, 708772), (37, 574680), (40, 531579), (60, 354386), (74, 287340), (111, 191560), (120, 177193), (148, 143670), (185, 114936), (222, 95780), (296, 71835), (370, 57468), (444, 47890), (555, 38312), (740, 28734), (888, 23945), (1110, 19156), (1480, 14367), (2220, 9578), (4440, 4789)]