21156090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{30661}}^1$

素因数の和:30694

約数の個数: 32

約数和(自身を含む): 52983936

約数和(自身を除く): 31827846

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690, 30661, 61322, 91983, 153305, 183966, 306610, 459915, 705203, 919830, 1410406, 2115609, 3526015, 4231218, 7052030, 10578045, 21156090]

約数ペア:

[(1, 21156090), (2, 10578045), (3, 7052030), (5, 4231218), (6, 3526015), (10, 2115609), (15, 1410406), (23, 919830), (30, 705203), (46, 459915), (69, 306610), (115, 183966), (138, 153305), (230, 91983), (345, 61322), (690, 30661)]