15421.000000

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:192

約数の個数: 48

約数和(自身を含む): 2528064

約数和(自身を除く): 1539276

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 37, 51, 68, 74, 102, 111, 131, 148, 204, 222, 262, 393, 444, 524, 629, 786, 1258, 1572, 1887, 2227, 2516, 3774, 4454, 4847, 6681, 7548, 8908, 9694, 13362, 14541, 19388, 26724, 29082, 58164, 82399, 164798, 247197, 329596, 494394, 988788]

約数ペア:

[(1, 988788), (2, 494394), (3, 329596), (4, 247197), (6, 164798), (12, 82399), (17, 58164), (34, 29082), (37, 26724), (51, 19388), (68, 14541), (74, 13362), (102, 9694), (111, 8908), (131, 7548), (148, 6681), (204, 4847), (222, 4454), (262, 3774), (393, 2516), (444, 2227), (524, 1887), (629, 1572), (786, 1258)]