21213816

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67993}}^1$

素因数の和:68015

約数の個数: 32

約数和(自身を含む): 57114960

約数和(自身を除く): 35901144

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 67993, 135986, 203979, 271972, 407958, 543944, 815916, 883909, 1631832, 1767818, 2651727, 3535636, 5303454, 7071272, 10606908, 21213816]

約数ペア:

[(1, 21213816), (2, 10606908), (3, 7071272), (4, 5303454), (6, 3535636), (8, 2651727), (12, 1767818), (13, 1631832), (24, 883909), (26, 815916), (39, 543944), (52, 407958), (78, 271972), (104, 203979), (156, 135986), (312, 67993)]