20921519982

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{503963}}^1$

素因数の和:504033

約数の個数: 64

約数和(自身を含む): 49638438144

約数和(自身を除く): 28716918162

約数列:

[1, 2, 3, 6, 11, 17, 22, 33, 34, 37, 51, 66, 74, 102, 111, 187, 222, 374, 407, 561, 629, 814, 1122, 1221, 1258, 1887, 2442, 3774, 6919, 13838, 20757, 41514, 503963, 1007926, 1511889, 3023778, 5543593, 8567371, 11087186, 16630779, 17134742, 18646631, 25702113, 33261558, 37293262, 51404226, 55939893, 94241081, 111879786, 188482162, 205112941, 282723243, 316992727, 410225882, 565446486, 615338823, 633985454, 950978181, 1230677646, 1901956362, 3486919997, 6973839994, 10460759991, 20921519982]

約数ペア:

[(1, 20921519982), (2, 10460759991), (3, 6973839994), (6, 3486919997), (11, 1901956362), (17, 1230677646), (22, 950978181), (33, 633985454), (34, 615338823), (37, 565446486), (51, 410225882), (66, 316992727), (74, 282723243), (102, 205112941), (111, 188482162), (187, 111879786), (222, 94241081), (374, 55939893), (407, 51404226), (561, 37293262), (629, 33261558), (814, 25702113), (1122, 18646631), (1221, 17134742), (1258, 16630779), (1887, 11087186), (2442, 8567371), (3774, 5543593), (6919, 3023778), (13838, 1511889), (20757, 1007926), (41514, 503963)]