21550158

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1213}}^1$

素因数の和:1278

約数の個数: 64

約数和(自身を含む): 55941120

約数和(自身を除く): 34390962

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 47, 54, 63, 94, 126, 141, 189, 282, 329, 378, 423, 658, 846, 987, 1213, 1269, 1974, 2426, 2538, 2961, 3639, 5922, 7278, 8491, 8883, 10917, 16982, 17766, 21834, 25473, 32751, 50946, 57011, 65502, 76419, 114022, 152838, 171033, 229257, 342066, 399077, 458514, 513099, 798154, 1026198, 1197231, 1539297, 2394462, 3078594, 3591693, 7183386, 10775079, 21550158]

約数ペア:

[(1, 21550158), (2, 10775079), (3, 7183386), (6, 3591693), (7, 3078594), (9, 2394462), (14, 1539297), (18, 1197231), (21, 1026198), (27, 798154), (42, 513099), (47, 458514), (54, 399077), (63, 342066), (94, 229257), (126, 171033), (141, 152838), (189, 114022), (282, 76419), (329, 65502), (378, 57011), (423, 50946), (658, 32751), (846, 25473), (987, 21834), (1213, 17766), (1269, 16982), (1974, 10917), (2426, 8883), (2538, 8491), (2961, 7278), (3639, 5922)]