19966635

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{367}}^1$

素因数の和:425

約数の個数: 64

約数和(自身を含む): 39567360

約数和(自身を除く): 19600725

約数列:

[1, 3, 5, 9, 13, 15, 27, 31, 39, 45, 65, 93, 117, 135, 155, 195, 279, 351, 367, 403, 465, 585, 837, 1101, 1209, 1395, 1755, 1835, 2015, 3303, 3627, 4185, 4771, 5505, 6045, 9909, 10881, 11377, 14313, 16515, 18135, 23855, 34131, 42939, 49545, 54405, 56885, 71565, 102393, 128817, 147901, 170655, 214695, 307179, 443703, 511965, 644085, 739505, 1331109, 1535895, 2218515, 3993327, 6655545, 19966635]

約数ペア:

[(1, 19966635), (3, 6655545), (5, 3993327), (9, 2218515), (13, 1535895), (15, 1331109), (27, 739505), (31, 644085), (39, 511965), (45, 443703), (65, 307179), (93, 214695), (117, 170655), (135, 147901), (155, 128817), (195, 102393), (279, 71565), (351, 56885), (367, 54405), (403, 49545), (465, 42939), (585, 34131), (837, 23855), (1101, 18135), (1209, 16515), (1395, 14313), (1755, 11377), (1835, 10881), (2015, 9909), (3303, 6045), (3627, 5505), (4185, 4771)]