21572406

素因数分解:

$2^1\times 3^4\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:171

約数の個数: 80

約数和(自身を含む): 51313680

約数和(自身を除く): 29741274

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 59, 61, 74, 81, 111, 118, 122, 162, 177, 183, 222, 333, 354, 366, 531, 549, 666, 999, 1062, 1098, 1593, 1647, 1998, 2183, 2257, 2997, 3186, 3294, 3599, 4366, 4514, 4779, 4941, 5994, 6549, 6771, 7198, 9558, 9882, 10797, 13098, 13542, 19647, 20313, 21594, 32391, 39294, 40626, 58941, 60939, 64782, 97173, 117882, 121878, 133163, 176823, 182817, 194346, 266326, 291519, 353646, 365634, 399489, 583038, 798978, 1198467, 2396934, 3595401, 7190802, 10786203, 21572406]

約数ペア:

[(1, 21572406), (2, 10786203), (3, 7190802), (6, 3595401), (9, 2396934), (18, 1198467), (27, 798978), (37, 583038), (54, 399489), (59, 365634), (61, 353646), (74, 291519), (81, 266326), (111, 194346), (118, 182817), (122, 176823), (162, 133163), (177, 121878), (183, 117882), (222, 97173), (333, 64782), (354, 60939), (366, 58941), (531, 40626), (549, 39294), (666, 32391), (999, 21594), (1062, 20313), (1098, 19647), (1593, 13542), (1647, 13098), (1998, 10797), (2183, 9882), (2257, 9558), (2997, 7198), (3186, 6771), (3294, 6549), (3599, 5994), (4366, 4941), (4514, 4779)]