21684738

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:211

約数の個数: 64

約数和(自身を含む): 48263040

約数和(自身を除く): 26578302

約数列:

[1, 2, 3, 6, 19, 37, 38, 53, 57, 74, 97, 106, 111, 114, 159, 194, 222, 291, 318, 582, 703, 1007, 1406, 1843, 1961, 2014, 2109, 3021, 3589, 3686, 3922, 4218, 5141, 5529, 5883, 6042, 7178, 10282, 10767, 11058, 11766, 15423, 21534, 30846, 37259, 68191, 74518, 97679, 111777, 136382, 190217, 195358, 204573, 223554, 293037, 380434, 409146, 570651, 586074, 1141302, 3614123, 7228246, 10842369, 21684738]

約数ペア:

[(1, 21684738), (2, 10842369), (3, 7228246), (6, 3614123), (19, 1141302), (37, 586074), (38, 570651), (53, 409146), (57, 380434), (74, 293037), (97, 223554), (106, 204573), (111, 195358), (114, 190217), (159, 136382), (194, 111777), (222, 97679), (291, 74518), (318, 68191), (582, 37259), (703, 30846), (1007, 21534), (1406, 15423), (1843, 11766), (1961, 11058), (2014, 10767), (2109, 10282), (3021, 7178), (3589, 6042), (3686, 5883), (3922, 5529), (4218, 5141)]