21876204

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{271}}^1$

素因数の和:347

約数の個数: 72

約数和(自身を含む): 60501504

約数和(自身を除く): 38625300

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 31, 42, 62, 84, 93, 124, 186, 217, 271, 372, 434, 542, 651, 813, 868, 961, 1084, 1302, 1626, 1897, 1922, 2604, 2883, 3252, 3794, 3844, 5691, 5766, 6727, 7588, 8401, 11382, 11532, 13454, 16802, 20181, 22764, 25203, 26908, 33604, 40362, 50406, 58807, 80724, 100812, 117614, 176421, 235228, 260431, 352842, 520862, 705684, 781293, 1041724, 1562586, 1823017, 3125172, 3646034, 5469051, 7292068, 10938102, 21876204]

約数ペア:

[(1, 21876204), (2, 10938102), (3, 7292068), (4, 5469051), (6, 3646034), (7, 3125172), (12, 1823017), (14, 1562586), (21, 1041724), (28, 781293), (31, 705684), (42, 520862), (62, 352842), (84, 260431), (93, 235228), (124, 176421), (186, 117614), (217, 100812), (271, 80724), (372, 58807), (434, 50406), (542, 40362), (651, 33604), (813, 26908), (868, 25203), (961, 22764), (1084, 20181), (1302, 16802), (1626, 13454), (1897, 11532), (1922, 11382), (2604, 8401), (2883, 7588), (3252, 6727), (3794, 5766), (3844, 5691)]