21971502

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{859}}^1$

素因数の和:910

約数の個数: 72

約数和(自身を含む): 57353400

約数和(自身を除く): 35381898

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 29, 42, 49, 58, 63, 87, 98, 126, 147, 174, 203, 261, 294, 406, 441, 522, 609, 859, 882, 1218, 1421, 1718, 1827, 2577, 2842, 3654, 4263, 5154, 6013, 7731, 8526, 12026, 12789, 15462, 18039, 24911, 25578, 36078, 42091, 49822, 54117, 74733, 84182, 108234, 126273, 149466, 174377, 224199, 252546, 348754, 378819, 448398, 523131, 757638, 1046262, 1220639, 1569393, 2441278, 3138786, 3661917, 7323834, 10985751, 21971502]

約数ペア:

[(1, 21971502), (2, 10985751), (3, 7323834), (6, 3661917), (7, 3138786), (9, 2441278), (14, 1569393), (18, 1220639), (21, 1046262), (29, 757638), (42, 523131), (49, 448398), (58, 378819), (63, 348754), (87, 252546), (98, 224199), (126, 174377), (147, 149466), (174, 126273), (203, 108234), (261, 84182), (294, 74733), (406, 54117), (441, 49822), (522, 42091), (609, 36078), (859, 25578), (882, 24911), (1218, 18039), (1421, 15462), (1718, 12789), (1827, 12026), (2577, 8526), (2842, 7731), (3654, 6013), (4263, 5154)]