28161378

素因数分解:

$2^1\times 3^3\times 7^2\times {\mathrm{29}}^1\times {\mathrm{367}}^1$

素因数の和:421

約数の個数: 96

約数和(自身を含む): 75513600

約数和(自身を除く): 47352222

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 29, 42, 49, 54, 58, 63, 87, 98, 126, 147, 174, 189, 203, 261, 294, 367, 378, 406, 441, 522, 609, 734, 783, 882, 1101, 1218, 1323, 1421, 1566, 1827, 2202, 2569, 2646, 2842, 3303, 3654, 4263, 5138, 5481, 6606, 7707, 8526, 9909, 10643, 10962, 12789, 15414, 17983, 19818, 21286, 23121, 25578, 31929, 35966, 38367, 46242, 53949, 63858, 69363, 74501, 76734, 95787, 107898, 138726, 149002, 161847, 191574, 223503, 287361, 323694, 447006, 485541, 521507, 574722, 670509, 971082, 1043014, 1341018, 1564521, 2011527, 3129042, 4023054, 4693563, 9387126, 14080689, 28161378]

約数ペア:

[(1, 28161378), (2, 14080689), (3, 9387126), (6, 4693563), (7, 4023054), (9, 3129042), (14, 2011527), (18, 1564521), (21, 1341018), (27, 1043014), (29, 971082), (42, 670509), (49, 574722), (54, 521507), (58, 485541), (63, 447006), (87, 323694), (98, 287361), (126, 223503), (147, 191574), (174, 161847), (189, 149002), (203, 138726), (261, 107898), (294, 95787), (367, 76734), (378, 74501), (406, 69363), (441, 63858), (522, 53949), (609, 46242), (734, 38367), (783, 35966), (882, 31929), (1101, 25578), (1218, 23121), (1323, 21286), (1421, 19818), (1566, 17983), (1827, 15414), (2202, 12789), (2569, 10962), (2646, 10643), (2842, 9909), (3303, 8526), (3654, 7707), (4263, 6606), (5138, 5481)]