21490710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1019}}^1$

素因数の和:1085

約数の個数: 64

約数和(自身を含む): 55814400

約数和(自身を除く): 34323690

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 37, 38, 57, 74, 95, 111, 114, 185, 190, 222, 285, 370, 555, 570, 703, 1019, 1110, 1406, 2038, 2109, 3057, 3515, 4218, 5095, 6114, 7030, 10190, 10545, 15285, 19361, 21090, 30570, 37703, 38722, 58083, 75406, 96805, 113109, 116166, 188515, 193610, 226218, 290415, 377030, 565545, 580830, 716357, 1131090, 1432714, 2149071, 3581785, 4298142, 7163570, 10745355, 21490710]

約数ペア:

[(1, 21490710), (2, 10745355), (3, 7163570), (5, 4298142), (6, 3581785), (10, 2149071), (15, 1432714), (19, 1131090), (30, 716357), (37, 580830), (38, 565545), (57, 377030), (74, 290415), (95, 226218), (111, 193610), (114, 188515), (185, 116166), (190, 113109), (222, 96805), (285, 75406), (370, 58083), (555, 38722), (570, 37703), (703, 30570), (1019, 21090), (1110, 19361), (1406, 15285), (2038, 10545), (2109, 10190), (3057, 7030), (3515, 6114), (4218, 5095)]