21591830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4051}}^1$

素因数の和:4112

約数の個数: 32

約数和(自身を含む): 42886368

約数和(自身を除く): 21294538

約数列:

[1, 2, 5, 10, 13, 26, 41, 65, 82, 130, 205, 410, 533, 1066, 2665, 4051, 5330, 8102, 20255, 40510, 52663, 105326, 166091, 263315, 332182, 526630, 830455, 1660910, 2159183, 4318366, 10795915, 21591830]

約数ペア:

[(1, 21591830), (2, 10795915), (5, 4318366), (10, 2159183), (13, 1660910), (26, 830455), (41, 526630), (65, 332182), (82, 263315), (130, 166091), (205, 105326), (410, 52663), (533, 40510), (1066, 20255), (2665, 8102), (4051, 5330)]