21615228

素因数分解:

$2^2\times 3^3\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:284

約数の個数: 96

約数和(自身を含む): 60621120

約数和(自身を除く): 39005892

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 27, 34, 36, 51, 54, 61, 68, 102, 108, 122, 153, 183, 193, 204, 244, 306, 366, 386, 459, 549, 579, 612, 732, 772, 918, 1037, 1098, 1158, 1647, 1737, 1836, 2074, 2196, 2316, 3111, 3281, 3294, 3474, 4148, 5211, 6222, 6562, 6588, 6948, 9333, 9843, 10422, 11773, 12444, 13124, 18666, 19686, 20844, 23546, 27999, 29529, 35319, 37332, 39372, 47092, 55998, 59058, 70638, 88587, 105957, 111996, 118116, 141276, 177174, 200141, 211914, 317871, 354348, 400282, 423828, 600423, 635742, 800564, 1200846, 1271484, 1801269, 2401692, 3602538, 5403807, 7205076, 10807614, 21615228]

約数ペア:

[(1, 21615228), (2, 10807614), (3, 7205076), (4, 5403807), (6, 3602538), (9, 2401692), (12, 1801269), (17, 1271484), (18, 1200846), (27, 800564), (34, 635742), (36, 600423), (51, 423828), (54, 400282), (61, 354348), (68, 317871), (102, 211914), (108, 200141), (122, 177174), (153, 141276), (183, 118116), (193, 111996), (204, 105957), (244, 88587), (306, 70638), (366, 59058), (386, 55998), (459, 47092), (549, 39372), (579, 37332), (612, 35319), (732, 29529), (772, 27999), (918, 23546), (1037, 20844), (1098, 19686), (1158, 18666), (1647, 13124), (1737, 12444), (1836, 11773), (2074, 10422), (2196, 9843), (2316, 9333), (3111, 6948), (3281, 6588), (3294, 6562), (3474, 6222), (4148, 5211)]