21921570

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{11}}^3\times {\mathrm{61}}^1$

素因数の和:110

約数の個数: 128

約数和(自身を含む): 65352960

約数和(自身を除く): 43431390

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 27, 30, 33, 45, 54, 55, 61, 66, 90, 99, 110, 121, 122, 135, 165, 183, 198, 242, 270, 297, 305, 330, 363, 366, 495, 549, 594, 605, 610, 671, 726, 915, 990, 1089, 1098, 1210, 1331, 1342, 1485, 1647, 1815, 1830, 2013, 2178, 2662, 2745, 2970, 3267, 3294, 3355, 3630, 3993, 4026, 5445, 5490, 6039, 6534, 6655, 6710, 7381, 7986, 8235, 10065, 10890, 11979, 12078, 13310, 14762, 16335, 16470, 18117, 19965, 20130, 22143, 23958, 30195, 32670, 35937, 36234, 36905, 39930, 44286, 59895, 60390, 66429, 71874, 73810, 81191, 90585, 110715, 119790, 132858, 162382, 179685, 181170, 199287, 221430, 243573, 332145, 359370, 398574, 405955, 487146, 664290, 730719, 811910, 996435, 1217865, 1461438, 1992870, 2192157, 2435730, 3653595, 4384314, 7307190, 10960785, 21921570]

約数ペア:

[(1, 21921570), (2, 10960785), (3, 7307190), (5, 4384314), (6, 3653595), (9, 2435730), (10, 2192157), (11, 1992870), (15, 1461438), (18, 1217865), (22, 996435), (27, 811910), (30, 730719), (33, 664290), (45, 487146), (54, 405955), (55, 398574), (61, 359370), (66, 332145), (90, 243573), (99, 221430), (110, 199287), (121, 181170), (122, 179685), (135, 162382), (165, 132858), (183, 119790), (198, 110715), (242, 90585), (270, 81191), (297, 73810), (305, 71874), (330, 66429), (363, 60390), (366, 59895), (495, 44286), (549, 39930), (594, 36905), (605, 36234), (610, 35937), (671, 32670), (726, 30195), (915, 23958), (990, 22143), (1089, 20130), (1098, 19965), (1210, 18117), (1331, 16470), (1342, 16335), (1485, 14762), (1647, 13310), (1815, 12078), (1830, 11979), (2013, 10890), (2178, 10065), (2662, 8235), (2745, 7986), (2970, 7381), (3267, 6710), (3294, 6655), (3355, 6534), (3630, 6039), (3993, 5490), (4026, 5445)]