21532156989

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2671}}^1\times {\mathrm{7243}}^1$

素因数の和:9977

約数の個数: 32

約数和(自身を含む): 33447112704

約数和(自身を除く): 11914955715

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 2671, 7243, 8013, 18697, 21729, 50701, 56091, 141563, 152103, 383879, 424689, 990941, 1151637, 2687153, 2972823, 8061459, 19346053, 58038159, 135422371, 406267113, 1025340809, 3076022427, 7177385663, 21532156989]

約数ペア:

[(1, 21532156989), (3, 7177385663), (7, 3076022427), (21, 1025340809), (53, 406267113), (159, 135422371), (371, 58038159), (1113, 19346053), (2671, 8061459), (7243, 2972823), (8013, 2687153), (18697, 1151637), (21729, 990941), (50701, 424689), (56091, 383879), (141563, 152103)]