21233340

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1$

素因数の和:298

約数の個数: 144

約数和(自身を含む): 70997472

約数和(自身を除く): 49764132

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 45, 51, 54, 60, 68, 81, 85, 90, 102, 108, 135, 153, 162, 170, 180, 204, 243, 255, 257, 270, 306, 324, 340, 405, 459, 486, 510, 514, 540, 612, 765, 771, 810, 918, 972, 1020, 1028, 1215, 1285, 1377, 1530, 1542, 1620, 1836, 2295, 2313, 2430, 2570, 2754, 3060, 3084, 3855, 4131, 4369, 4590, 4626, 4860, 5140, 5508, 6885, 6939, 7710, 8262, 8738, 9180, 9252, 11565, 13107, 13770, 13878, 15420, 16524, 17476, 20655, 20817, 21845, 23130, 26214, 27540, 27756, 34695, 39321, 41310, 41634, 43690, 46260, 52428, 62451, 65535, 69390, 78642, 82620, 83268, 87380, 104085, 117963, 124902, 131070, 138780, 157284, 196605, 208170, 235926, 249804, 262140, 312255, 353889, 393210, 416340, 471852, 589815, 624510, 707778, 786420, 1061667, 1179630, 1249020, 1415556, 1769445, 2123334, 2359260, 3538890, 4246668, 5308335, 7077780, 10616670, 21233340]

約数ペア:

[(1, 21233340), (2, 10616670), (3, 7077780), (4, 5308335), (5, 4246668), (6, 3538890), (9, 2359260), (10, 2123334), (12, 1769445), (15, 1415556), (17, 1249020), (18, 1179630), (20, 1061667), (27, 786420), (30, 707778), (34, 624510), (36, 589815), (45, 471852), (51, 416340), (54, 393210), (60, 353889), (68, 312255), (81, 262140), (85, 249804), (90, 235926), (102, 208170), (108, 196605), (135, 157284), (153, 138780), (162, 131070), (170, 124902), (180, 117963), (204, 104085), (243, 87380), (255, 83268), (257, 82620), (270, 78642), (306, 69390), (324, 65535), (340, 62451), (405, 52428), (459, 46260), (486, 43690), (510, 41634), (514, 41310), (540, 39321), (612, 34695), (765, 27756), (771, 27540), (810, 26214), (918, 23130), (972, 21845), (1020, 20817), (1028, 20655), (1215, 17476), (1285, 16524), (1377, 15420), (1530, 13878), (1542, 13770), (1620, 13107), (1836, 11565), (2295, 9252), (2313, 9180), (2430, 8738), (2570, 8262), (2754, 7710), (3060, 6939), (3084, 6885), (3855, 5508), (4131, 5140), (4369, 4860), (4590, 4626)]