20987970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{36821}}^1$

素因数の和:36850

約数の個数: 32

約数和(自身を含む): 53023680

約数和(自身を除く): 32035710

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 190, 285, 570, 36821, 73642, 110463, 184105, 220926, 368210, 552315, 699599, 1104630, 1399198, 2098797, 3497995, 4197594, 6995990, 10493985, 20987970]

約数ペア:

[(1, 20987970), (2, 10493985), (3, 6995990), (5, 4197594), (6, 3497995), (10, 2098797), (15, 1399198), (19, 1104630), (30, 699599), (38, 552315), (57, 368210), (95, 220926), (114, 184105), (190, 110463), (285, 73642), (570, 36821)]