221891738

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{491}}^1$

素因数の和:758

約数の個数: 32

約数和(自身を含む): 355373568

約数和(自身を除く): 133481830

約数列:

[1, 2, 31, 37, 62, 74, 197, 394, 491, 982, 1147, 2294, 6107, 7289, 12214, 14578, 15221, 18167, 30442, 36334, 96727, 193454, 225959, 451918, 563177, 1126354, 2998537, 3578899, 5997074, 7157798, 110945869, 221891738]

約数ペア:

[(1, 221891738), (2, 110945869), (31, 7157798), (37, 5997074), (62, 3578899), (74, 2998537), (197, 1126354), (394, 563177), (491, 451918), (982, 225959), (1147, 193454), (2294, 96727), (6107, 36334), (7289, 30442), (12214, 18167), (14578, 15221)]