891996

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:99

約数の個数: 72

約数和(自身を含む): 2547216

約数和(自身を除く): 1655220

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 37, 41, 42, 49, 74, 82, 84, 98, 111, 123, 147, 148, 164, 196, 222, 246, 259, 287, 294, 444, 492, 518, 574, 588, 777, 861, 1036, 1148, 1517, 1554, 1722, 1813, 2009, 3034, 3108, 3444, 3626, 4018, 4551, 5439, 6027, 6068, 7252, 8036, 9102, 10619, 10878, 12054, 18204, 21238, 21756, 24108, 31857, 42476, 63714, 74333, 127428, 148666, 222999, 297332, 445998, 891996]

約数ペア:

[(1, 891996), (2, 445998), (3, 297332), (4, 222999), (6, 148666), (7, 127428), (12, 74333), (14, 63714), (21, 42476), (28, 31857), (37, 24108), (41, 21756), (42, 21238), (49, 18204), (74, 12054), (82, 10878), (84, 10619), (98, 9102), (111, 8036), (123, 7252), (147, 6068), (148, 6027), (164, 5439), (196, 4551), (222, 4018), (246, 3626), (259, 3444), (287, 3108), (294, 3034), (444, 2009), (492, 1813), (518, 1722), (574, 1554), (588, 1517), (777, 1148), (861, 1036)]