21996648

素因数分解:

$2^3\times 3^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{359}}^1$

素因数の和:431

約数の個数: 96

約数和(自身を含む): 64022400

約数和(自身を除く): 42025752

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 36, 37, 46, 69, 72, 74, 92, 111, 138, 148, 184, 207, 222, 276, 296, 333, 359, 414, 444, 552, 666, 718, 828, 851, 888, 1077, 1332, 1436, 1656, 1702, 2154, 2553, 2664, 2872, 3231, 3404, 4308, 5106, 6462, 6808, 7659, 8257, 8616, 10212, 12924, 13283, 15318, 16514, 20424, 24771, 25848, 26566, 30636, 33028, 39849, 49542, 53132, 61272, 66056, 74313, 79698, 99084, 106264, 119547, 148626, 159396, 198168, 239094, 297252, 305509, 318792, 478188, 594504, 611018, 916527, 956376, 1222036, 1833054, 2444072, 2749581, 3666108, 5499162, 7332216, 10998324, 21996648]

約数ペア:

[(1, 21996648), (2, 10998324), (3, 7332216), (4, 5499162), (6, 3666108), (8, 2749581), (9, 2444072), (12, 1833054), (18, 1222036), (23, 956376), (24, 916527), (36, 611018), (37, 594504), (46, 478188), (69, 318792), (72, 305509), (74, 297252), (92, 239094), (111, 198168), (138, 159396), (148, 148626), (184, 119547), (207, 106264), (222, 99084), (276, 79698), (296, 74313), (333, 66056), (359, 61272), (414, 53132), (444, 49542), (552, 39849), (666, 33028), (718, 30636), (828, 26566), (851, 25848), (888, 24771), (1077, 20424), (1332, 16514), (1436, 15318), (1656, 13283), (1702, 12924), (2154, 10212), (2553, 8616), (2664, 8257), (2872, 7659), (3231, 6808), (3404, 6462), (4308, 5106)]