21354690

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{199}}^1$

素因数の和:296

約数の個数: 96

約数和(自身を含む): 60739200

約数和(自身を除く): 39384510

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 73, 98, 105, 146, 147, 199, 210, 219, 245, 294, 365, 398, 438, 490, 511, 597, 730, 735, 995, 1022, 1095, 1194, 1393, 1470, 1533, 1990, 2190, 2555, 2786, 2985, 3066, 3577, 4179, 5110, 5970, 6965, 7154, 7665, 8358, 9751, 10731, 13930, 14527, 15330, 17885, 19502, 20895, 21462, 29054, 29253, 35770, 41790, 43581, 48755, 53655, 58506, 72635, 87162, 97510, 101689, 107310, 145270, 146265, 203378, 217905, 292530, 305067, 435810, 508445, 610134, 711823, 1016890, 1423646, 1525335, 2135469, 3050670, 3559115, 4270938, 7118230, 10677345, 21354690]

約数ペア:

[(1, 21354690), (2, 10677345), (3, 7118230), (5, 4270938), (6, 3559115), (7, 3050670), (10, 2135469), (14, 1525335), (15, 1423646), (21, 1016890), (30, 711823), (35, 610134), (42, 508445), (49, 435810), (70, 305067), (73, 292530), (98, 217905), (105, 203378), (146, 146265), (147, 145270), (199, 107310), (210, 101689), (219, 97510), (245, 87162), (294, 72635), (365, 58506), (398, 53655), (438, 48755), (490, 43581), (511, 41790), (597, 35770), (730, 29253), (735, 29054), (995, 21462), (1022, 20895), (1095, 19502), (1194, 17885), (1393, 15330), (1470, 14527), (1533, 13930), (1990, 10731), (2190, 9751), (2555, 8358), (2786, 7665), (2985, 7154), (3066, 6965), (3577, 5970), (4179, 5110)]