278667459

素因数分解:

$3^4\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1151}}^1$

素因数の和:1238

約数の個数: 60

約数和(自身を含む): 492611328

約数和(自身を除く): 213943869

約数列:

[1, 3, 7, 9, 21, 27, 49, 61, 63, 81, 147, 183, 189, 427, 441, 549, 567, 1151, 1281, 1323, 1647, 2989, 3453, 3843, 3969, 4941, 8057, 8967, 10359, 11529, 24171, 26901, 31077, 34587, 56399, 70211, 72513, 80703, 93231, 169197, 210633, 217539, 242109, 491477, 507591, 631899, 652617, 1474431, 1522773, 1895697, 3440339, 4423293, 4568319, 5687091, 10321017, 13269879, 30963051, 39809637, 92889153, 278667459]

約数ペア:

[(1, 278667459), (3, 92889153), (7, 39809637), (9, 30963051), (21, 13269879), (27, 10321017), (49, 5687091), (61, 4568319), (63, 4423293), (81, 3440339), (147, 1895697), (183, 1522773), (189, 1474431), (427, 652617), (441, 631899), (549, 507591), (567, 491477), (1151, 242109), (1281, 217539), (1323, 210633), (1647, 169197), (2989, 93231), (3453, 80703), (3843, 72513), (3969, 70211), (4941, 56399), (8057, 34587), (8967, 31077), (10359, 26901), (11529, 24171)]