21738753

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:334

約数の個数: 32

約数和(自身を含む): 33390720

約数和(自身を除く): 11651967

約数列:

[1, 3, 9, 27, 61, 67, 183, 197, 201, 549, 591, 603, 1647, 1773, 1809, 4087, 5319, 12017, 12261, 13199, 36051, 36783, 39597, 108153, 110349, 118791, 324459, 356373, 805139, 2415417, 7246251, 21738753]

約数ペア:

[(1, 21738753), (3, 7246251), (9, 2415417), (27, 805139), (61, 356373), (67, 324459), (183, 118791), (197, 110349), (201, 108153), (549, 39597), (591, 36783), (603, 36051), (1647, 13199), (1773, 12261), (1809, 12017), (4087, 5319)]