21636120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{443}}^1$

素因数の和:505

約数の個数: 128

約数和(自身を含む): 72887040

約数和(自身を除く): 51250920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 37, 40, 44, 55, 60, 66, 74, 88, 110, 111, 120, 132, 148, 165, 185, 220, 222, 264, 296, 330, 370, 407, 440, 443, 444, 555, 660, 740, 814, 886, 888, 1110, 1221, 1320, 1329, 1480, 1628, 1772, 2035, 2215, 2220, 2442, 2658, 3256, 3544, 4070, 4430, 4440, 4873, 4884, 5316, 6105, 6645, 8140, 8860, 9746, 9768, 10632, 12210, 13290, 14619, 16280, 16391, 17720, 19492, 24365, 24420, 26580, 29238, 32782, 38984, 48730, 48840, 49173, 53160, 58476, 65564, 73095, 81955, 97460, 98346, 116952, 131128, 146190, 163910, 180301, 194920, 196692, 245865, 292380, 327820, 360602, 393384, 491730, 540903, 584760, 655640, 721204, 901505, 983460, 1081806, 1442408, 1803010, 1966920, 2163612, 2704515, 3606020, 4327224, 5409030, 7212040, 10818060, 21636120]

約数ペア:

[(1, 21636120), (2, 10818060), (3, 7212040), (4, 5409030), (5, 4327224), (6, 3606020), (8, 2704515), (10, 2163612), (11, 1966920), (12, 1803010), (15, 1442408), (20, 1081806), (22, 983460), (24, 901505), (30, 721204), (33, 655640), (37, 584760), (40, 540903), (44, 491730), (55, 393384), (60, 360602), (66, 327820), (74, 292380), (88, 245865), (110, 196692), (111, 194920), (120, 180301), (132, 163910), (148, 146190), (165, 131128), (185, 116952), (220, 98346), (222, 97460), (264, 81955), (296, 73095), (330, 65564), (370, 58476), (407, 53160), (440, 49173), (443, 48840), (444, 48730), (555, 38984), (660, 32782), (740, 29238), (814, 26580), (886, 24420), (888, 24365), (1110, 19492), (1221, 17720), (1320, 16391), (1329, 16280), (1480, 14619), (1628, 13290), (1772, 12210), (2035, 10632), (2215, 9768), (2220, 9746), (2442, 8860), (2658, 8140), (3256, 6645), (3544, 6105), (4070, 5316), (4430, 4884), (4440, 4873)]