20581458

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{283}}^1$

素因数の和:359

約数の個数: 64

約数和(自身を含む): 47112192

約数和(自身を除く): 26530734

約数列:

[1, 2, 3, 6, 17, 23, 31, 34, 46, 51, 62, 69, 93, 102, 138, 186, 283, 391, 527, 566, 713, 782, 849, 1054, 1173, 1426, 1581, 1698, 2139, 2346, 3162, 4278, 4811, 6509, 8773, 9622, 12121, 13018, 14433, 17546, 19527, 24242, 26319, 28866, 36363, 39054, 52638, 72726, 110653, 149141, 201779, 221306, 298282, 331959, 403558, 447423, 605337, 663918, 894846, 1210674, 3430243, 6860486, 10290729, 20581458]

約数ペア:

[(1, 20581458), (2, 10290729), (3, 6860486), (6, 3430243), (17, 1210674), (23, 894846), (31, 663918), (34, 605337), (46, 447423), (51, 403558), (62, 331959), (69, 298282), (93, 221306), (102, 201779), (138, 149141), (186, 110653), (283, 72726), (391, 52638), (527, 39054), (566, 36363), (713, 28866), (782, 26319), (849, 24242), (1054, 19527), (1173, 17546), (1426, 14433), (1581, 13018), (1698, 12121), (2139, 9622), (2346, 8773), (3162, 6509), (4278, 4811)]