21556512

素因数分解:

$2^5\times 3^2\times {\mathrm{29}}^2\times {\mathrm{89}}^1$

素因数の和:163

約数の個数: 108

約数和(自身を含む): 64201410

約数和(自身を除く): 42644898

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 29, 32, 36, 48, 58, 72, 87, 89, 96, 116, 144, 174, 178, 232, 261, 267, 288, 348, 356, 464, 522, 534, 696, 712, 801, 841, 928, 1044, 1068, 1392, 1424, 1602, 1682, 2088, 2136, 2523, 2581, 2784, 2848, 3204, 3364, 4176, 4272, 5046, 5162, 6408, 6728, 7569, 7743, 8352, 8544, 10092, 10324, 12816, 13456, 15138, 15486, 20184, 20648, 23229, 25632, 26912, 30276, 30972, 40368, 41296, 46458, 60552, 61944, 74849, 80736, 82592, 92916, 121104, 123888, 149698, 185832, 224547, 242208, 247776, 299396, 371664, 449094, 598792, 673641, 743328, 898188, 1197584, 1347282, 1796376, 2395168, 2694564, 3592752, 5389128, 7185504, 10778256, 21556512]

約数ペア:

[(1, 21556512), (2, 10778256), (3, 7185504), (4, 5389128), (6, 3592752), (8, 2694564), (9, 2395168), (12, 1796376), (16, 1347282), (18, 1197584), (24, 898188), (29, 743328), (32, 673641), (36, 598792), (48, 449094), (58, 371664), (72, 299396), (87, 247776), (89, 242208), (96, 224547), (116, 185832), (144, 149698), (174, 123888), (178, 121104), (232, 92916), (261, 82592), (267, 80736), (288, 74849), (348, 61944), (356, 60552), (464, 46458), (522, 41296), (534, 40368), (696, 30972), (712, 30276), (801, 26912), (841, 25632), (928, 23229), (1044, 20648), (1068, 20184), (1392, 15486), (1424, 15138), (1602, 13456), (1682, 12816), (2088, 10324), (2136, 10092), (2523, 8544), (2581, 8352), (2784, 7743), (2848, 7569), (3204, 6728), (3364, 6408), (4176, 5162), (4272, 5046)]