21308880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4673}}^1$

素因数の和:4708

約数の個数: 80

約数和(自身を含む): 69549120

約数和(自身を除く): 48240240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 4673, 9346, 14019, 18692, 23365, 28038, 37384, 46730, 56076, 70095, 74768, 88787, 93460, 112152, 140190, 177574, 186920, 224304, 266361, 280380, 355148, 373840, 443935, 532722, 560760, 710296, 887870, 1065444, 1121520, 1331805, 1420592, 1775740, 2130888, 2663610, 3551480, 4261776, 5327220, 7102960, 10654440, 21308880]

約数ペア:

[(1, 21308880), (2, 10654440), (3, 7102960), (4, 5327220), (5, 4261776), (6, 3551480), (8, 2663610), (10, 2130888), (12, 1775740), (15, 1420592), (16, 1331805), (19, 1121520), (20, 1065444), (24, 887870), (30, 710296), (38, 560760), (40, 532722), (48, 443935), (57, 373840), (60, 355148), (76, 280380), (80, 266361), (95, 224304), (114, 186920), (120, 177574), (152, 140190), (190, 112152), (228, 93460), (240, 88787), (285, 74768), (304, 70095), (380, 56076), (456, 46730), (570, 37384), (760, 28038), (912, 23365), (1140, 18692), (1520, 14019), (2280, 9346), (4560, 4673)]