19613988

素因数分解:

$2^2\times 3^5\times {\mathrm{17}}^1\times {\mathrm{1187}}^1$

素因数の和:1223

約数の個数: 72

約数和(自身を含む): 54486432

約数和(自身を除く): 34872444

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 27, 34, 36, 51, 54, 68, 81, 102, 108, 153, 162, 204, 243, 306, 324, 459, 486, 612, 918, 972, 1187, 1377, 1836, 2374, 2754, 3561, 4131, 4748, 5508, 7122, 8262, 10683, 14244, 16524, 20179, 21366, 32049, 40358, 42732, 60537, 64098, 80716, 96147, 121074, 128196, 181611, 192294, 242148, 288441, 363222, 384588, 544833, 576882, 726444, 1089666, 1153764, 1634499, 2179332, 3268998, 4903497, 6537996, 9806994, 19613988]

約数ペア:

[(1, 19613988), (2, 9806994), (3, 6537996), (4, 4903497), (6, 3268998), (9, 2179332), (12, 1634499), (17, 1153764), (18, 1089666), (27, 726444), (34, 576882), (36, 544833), (51, 384588), (54, 363222), (68, 288441), (81, 242148), (102, 192294), (108, 181611), (153, 128196), (162, 121074), (204, 96147), (243, 80716), (306, 64098), (324, 60537), (459, 42732), (486, 40358), (612, 32049), (918, 21366), (972, 20179), (1187, 16524), (1377, 14244), (1836, 10683), (2374, 8262), (2754, 7122), (3561, 5508), (4131, 4748)]