21578844

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:235

約数の個数: 96

約数和(自身を含む): 60673536

約数和(自身を除く): 39094692

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 37, 42, 53, 74, 84, 106, 111, 131, 148, 159, 212, 222, 259, 262, 318, 371, 393, 444, 518, 524, 636, 742, 777, 786, 917, 1036, 1113, 1484, 1554, 1572, 1834, 1961, 2226, 2751, 3108, 3668, 3922, 4452, 4847, 5502, 5883, 6943, 7844, 9694, 11004, 11766, 13727, 13886, 14541, 19388, 20829, 23532, 27454, 27772, 29082, 33929, 41181, 41658, 48601, 54908, 58164, 67858, 82362, 83316, 97202, 101787, 135716, 145803, 164724, 194404, 203574, 256891, 291606, 407148, 513782, 583212, 770673, 1027564, 1541346, 1798237, 3082692, 3596474, 5394711, 7192948, 10789422, 21578844]

約数ペア:

[(1, 21578844), (2, 10789422), (3, 7192948), (4, 5394711), (6, 3596474), (7, 3082692), (12, 1798237), (14, 1541346), (21, 1027564), (28, 770673), (37, 583212), (42, 513782), (53, 407148), (74, 291606), (84, 256891), (106, 203574), (111, 194404), (131, 164724), (148, 145803), (159, 135716), (212, 101787), (222, 97202), (259, 83316), (262, 82362), (318, 67858), (371, 58164), (393, 54908), (444, 48601), (518, 41658), (524, 41181), (636, 33929), (742, 29082), (777, 27772), (786, 27454), (917, 23532), (1036, 20829), (1113, 19388), (1484, 14541), (1554, 13886), (1572, 13727), (1834, 11766), (1961, 11004), (2226, 9694), (2751, 7844), (3108, 6943), (3668, 5883), (3922, 5502), (4452, 4847)]