21801291296

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{353}}^1\times {\mathrm{647}}^1$

素因数の和:1186

約数の個数: 96

約数和(自身を含む): 45667359360

約数和(自身を除く): 23866068064

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 157, 304, 314, 353, 608, 628, 647, 706, 1256, 1294, 1412, 2512, 2588, 2824, 2983, 5024, 5176, 5648, 5966, 6707, 10352, 11296, 11932, 12293, 13414, 20704, 23864, 24586, 26828, 47728, 49172, 53656, 55421, 95456, 98344, 101579, 107312, 110842, 196688, 203158, 214624, 221684, 228391, 393376, 406316, 443368, 456782, 812632, 886736, 913564, 1052999, 1625264, 1773472, 1827128, 1930001, 2105998, 3250528, 3654256, 3860002, 4211996, 4339429, 7308512, 7720004, 8423992, 8678858, 15440008, 16847984, 17357716, 30880016, 33695968, 34715432, 35857387, 61760032, 69430864, 71714774, 138861728, 143429548, 286859096, 573718192, 681290353, 1147436384, 1362580706, 2725161412, 5450322824, 10900645648, 21801291296]

約数ペア:

[(1, 21801291296), (2, 10900645648), (4, 5450322824), (8, 2725161412), (16, 1362580706), (19, 1147436384), (32, 681290353), (38, 573718192), (76, 286859096), (152, 143429548), (157, 138861728), (304, 71714774), (314, 69430864), (353, 61760032), (608, 35857387), (628, 34715432), (647, 33695968), (706, 30880016), (1256, 17357716), (1294, 16847984), (1412, 15440008), (2512, 8678858), (2588, 8423992), (2824, 7720004), (2983, 7308512), (5024, 4339429), (5176, 4211996), (5648, 3860002), (5966, 3654256), (6707, 3250528), (10352, 2105998), (11296, 1930001), (11932, 1827128), (12293, 1773472), (13414, 1625264), (20704, 1052999), (23864, 913564), (24586, 886736), (26828, 812632), (47728, 456782), (49172, 443368), (53656, 406316), (55421, 393376), (95456, 228391), (98344, 221684), (101579, 214624), (107312, 203158), (110842, 196688)]