20982996

素因数分解:

$2^2\times 3^3\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:198

約数の個数: 96

約数和(自身を含む): 57456000

約数和(自身を除く): 36473004

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 37, 54, 59, 74, 89, 108, 111, 118, 148, 177, 178, 222, 236, 267, 333, 354, 356, 444, 531, 534, 666, 708, 801, 999, 1062, 1068, 1332, 1593, 1602, 1998, 2124, 2183, 2403, 3186, 3204, 3293, 3996, 4366, 4806, 5251, 6372, 6549, 6586, 8732, 9612, 9879, 10502, 13098, 13172, 15753, 19647, 19758, 21004, 26196, 29637, 31506, 39294, 39516, 47259, 58941, 59274, 63012, 78588, 88911, 94518, 117882, 118548, 141777, 177822, 189036, 194287, 235764, 283554, 355644, 388574, 567108, 582861, 777148, 1165722, 1748583, 2331444, 3497166, 5245749, 6994332, 10491498, 20982996]

約数ペア:

[(1, 20982996), (2, 10491498), (3, 6994332), (4, 5245749), (6, 3497166), (9, 2331444), (12, 1748583), (18, 1165722), (27, 777148), (36, 582861), (37, 567108), (54, 388574), (59, 355644), (74, 283554), (89, 235764), (108, 194287), (111, 189036), (118, 177822), (148, 141777), (177, 118548), (178, 117882), (222, 94518), (236, 88911), (267, 78588), (333, 63012), (354, 59274), (356, 58941), (444, 47259), (531, 39516), (534, 39294), (666, 31506), (708, 29637), (801, 26196), (999, 21004), (1062, 19758), (1068, 19647), (1332, 15753), (1593, 13172), (1602, 13098), (1998, 10502), (2124, 9879), (2183, 9612), (2403, 8732), (3186, 6586), (3204, 6549), (3293, 6372), (3996, 5251), (4366, 4806)]