21335400

素因数分解:

$2^3\times 3^5\times 5^2\times {\mathrm{439}}^1$

素因数の和:470

約数の個数: 144

約数和(自身を含む): 74474400

約数和(自身を除く): 53139000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 27, 30, 36, 40, 45, 50, 54, 60, 72, 75, 81, 90, 100, 108, 120, 135, 150, 162, 180, 200, 216, 225, 243, 270, 300, 324, 360, 405, 439, 450, 486, 540, 600, 648, 675, 810, 878, 900, 972, 1080, 1215, 1317, 1350, 1620, 1756, 1800, 1944, 2025, 2195, 2430, 2634, 2700, 3240, 3512, 3951, 4050, 4390, 4860, 5268, 5400, 6075, 6585, 7902, 8100, 8780, 9720, 10536, 10975, 11853, 12150, 13170, 15804, 16200, 17560, 19755, 21950, 23706, 24300, 26340, 31608, 32925, 35559, 39510, 43900, 47412, 48600, 52680, 59265, 65850, 71118, 79020, 87800, 94824, 98775, 106677, 118530, 131700, 142236, 158040, 177795, 197550, 213354, 237060, 263400, 284472, 296325, 355590, 395100, 426708, 474120, 533385, 592650, 711180, 790200, 853416, 888975, 1066770, 1185300, 1422360, 1777950, 2133540, 2370600, 2666925, 3555900, 4267080, 5333850, 7111800, 10667700, 21335400]

約数ペア:

[(1, 21335400), (2, 10667700), (3, 7111800), (4, 5333850), (5, 4267080), (6, 3555900), (8, 2666925), (9, 2370600), (10, 2133540), (12, 1777950), (15, 1422360), (18, 1185300), (20, 1066770), (24, 888975), (25, 853416), (27, 790200), (30, 711180), (36, 592650), (40, 533385), (45, 474120), (50, 426708), (54, 395100), (60, 355590), (72, 296325), (75, 284472), (81, 263400), (90, 237060), (100, 213354), (108, 197550), (120, 177795), (135, 158040), (150, 142236), (162, 131700), (180, 118530), (200, 106677), (216, 98775), (225, 94824), (243, 87800), (270, 79020), (300, 71118), (324, 65850), (360, 59265), (405, 52680), (439, 48600), (450, 47412), (486, 43900), (540, 39510), (600, 35559), (648, 32925), (675, 31608), (810, 26340), (878, 24300), (900, 23706), (972, 21950), (1080, 19755), (1215, 17560), (1317, 16200), (1350, 15804), (1620, 13170), (1756, 12150), (1800, 11853), (1944, 10975), (2025, 10536), (2195, 9720), (2430, 8780), (2634, 8100), (2700, 7902), (3240, 6585), (3512, 6075), (3951, 5400), (4050, 5268), (4390, 4860)]