21315720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{9349}}^1$

素因数の和:9382

約数の個数: 64

約数和(自身を含む): 67320000

約数和(自身を除く): 46004280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 9349, 18698, 28047, 37396, 46745, 56094, 74792, 93490, 112188, 140235, 177631, 186980, 224376, 280470, 355262, 373960, 532893, 560940, 710524, 888155, 1065786, 1121880, 1421048, 1776310, 2131572, 2664465, 3552620, 4263144, 5328930, 7105240, 10657860, 21315720]

約数ペア:

[(1, 21315720), (2, 10657860), (3, 7105240), (4, 5328930), (5, 4263144), (6, 3552620), (8, 2664465), (10, 2131572), (12, 1776310), (15, 1421048), (19, 1121880), (20, 1065786), (24, 888155), (30, 710524), (38, 560940), (40, 532893), (57, 373960), (60, 355262), (76, 280470), (95, 224376), (114, 186980), (120, 177631), (152, 140235), (190, 112188), (228, 93490), (285, 74792), (380, 56094), (456, 46745), (570, 37396), (760, 28047), (1140, 18698), (2280, 9349)]