21156228

素因数分解:

$2^2\times 3^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1$

素因数の和:223

約数の個数: 120

約数和(自身を含む): 61471872

約数和(自身を除く): 40315644

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 23, 27, 34, 36, 46, 51, 54, 68, 69, 81, 92, 102, 108, 138, 153, 162, 167, 204, 207, 276, 306, 324, 334, 391, 414, 459, 501, 612, 621, 668, 782, 828, 918, 1002, 1173, 1242, 1377, 1503, 1564, 1836, 1863, 2004, 2346, 2484, 2754, 2839, 3006, 3519, 3726, 3841, 4509, 4692, 5508, 5678, 6012, 7038, 7452, 7682, 8517, 9018, 10557, 11356, 11523, 13527, 14076, 15364, 17034, 18036, 21114, 23046, 25551, 27054, 31671, 34068, 34569, 42228, 46092, 51102, 54108, 63342, 65297, 69138, 76653, 102204, 103707, 126684, 130594, 138276, 153306, 195891, 207414, 229959, 261188, 306612, 311121, 391782, 414828, 459918, 587673, 622242, 783564, 919836, 1175346, 1244484, 1763019, 2350692, 3526038, 5289057, 7052076, 10578114, 21156228]

約数ペア:

[(1, 21156228), (2, 10578114), (3, 7052076), (4, 5289057), (6, 3526038), (9, 2350692), (12, 1763019), (17, 1244484), (18, 1175346), (23, 919836), (27, 783564), (34, 622242), (36, 587673), (46, 459918), (51, 414828), (54, 391782), (68, 311121), (69, 306612), (81, 261188), (92, 229959), (102, 207414), (108, 195891), (138, 153306), (153, 138276), (162, 130594), (167, 126684), (204, 103707), (207, 102204), (276, 76653), (306, 69138), (324, 65297), (334, 63342), (391, 54108), (414, 51102), (459, 46092), (501, 42228), (612, 34569), (621, 34068), (668, 31671), (782, 27054), (828, 25551), (918, 23046), (1002, 21114), (1173, 18036), (1242, 17034), (1377, 15364), (1503, 14076), (1564, 13527), (1836, 11523), (1863, 11356), (2004, 10557), (2346, 9018), (2484, 8517), (2754, 7682), (2839, 7452), (3006, 7038), (3519, 6012), (3726, 5678), (3841, 5508), (4509, 4692)]